Removed the vi format comments from the source

Vim users can use the [editorconfig plugin](https://github.com/editorconfig/editorconfig-vim) to automatically set tab spacing for the SDL coding style.

Fixes https://github.com/libsdl-org/SDL/issues/6903

test/checkkeys.c

@@ -308,5 +308,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/checkkeysthreads.c

@@ -294,5 +294,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/controllermap.c

@@ -801,5 +801,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/loopwave.c

@@ -176,5 +176,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/loopwavequeue.c

@@ -144,5 +144,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testatomic.c

@@ -715,5 +715,3 @@ int main(int argc, char *argv[])
     RunFIFOTest(SDL_TRUE);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testaudiocapture.c

@@ -166,5 +166,3 @@ int main(int argc, char **argv)
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testaudiohotplug.c

@@ -199,5 +199,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testaudioinfo.c

@@ -101,5 +101,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation.c

@@ -117,5 +117,3 @@ int main(int argc, char *argv[])
     quit(result);
     return result;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_audio.c

@@ -1046,5 +1046,3 @@ SDLTest_TestSuiteReference audioTestSuite = {
     audioTests,
     _audioTearDown
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_clipboard.c

@@ -329,5 +329,3 @@ SDLTest_TestSuiteReference clipboardTestSuite = {
     clipboardTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_events.c

@@ -194,5 +194,3 @@ SDLTest_TestSuiteReference eventsTestSuite = {
     eventsTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_guid.c

@@ -155,5 +155,3 @@ SDLTest_TestSuiteReference guidTestSuite = {
     guidTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_hints.c

@@ -260,5 +260,3 @@ SDLTest_TestSuiteReference hintsTestSuite = {
     hintsTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_joystick.c

@@ -88,5 +88,3 @@ SDLTest_TestSuiteReference joystickTestSuite = {
     joystickTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_keyboard.c

@@ -700,5 +700,3 @@ SDLTest_TestSuiteReference keyboardTestSuite = {
     keyboardTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_main.c

@@ -174,5 +174,3 @@ SDLTest_TestSuiteReference mainTestSuite = {
     mainTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_math.c

@@ -3355,5 +3355,3 @@ SDLTest_TestSuiteReference mathTestSuite = {
     mathTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_mouse.c

@@ -655,5 +655,3 @@ SDLTest_TestSuiteReference mouseTestSuite = {
     mouseTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_pixels.c

@@ -415,5 +415,3 @@ SDLTest_TestSuiteReference pixelsTestSuite = {
     pixelsTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_platform.c

@@ -600,5 +600,3 @@ SDLTest_TestSuiteReference platformTestSuite = {
     platformTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_rect.c

@@ -1852,5 +1852,3 @@ SDLTest_TestSuiteReference rectTestSuite = {
     rectTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_render.c

@@ -1161,5 +1161,3 @@ SDLTest_TestSuiteReference renderTestSuite = {
     renderTests,
     CleanupDestroyRenderer
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_rwops.c

@@ -650,5 +650,3 @@ SDLTest_TestSuiteReference rwopsTestSuite = {
     rwopsTests,
     RWopsTearDown
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_sdltest.c

@@ -1296,5 +1296,3 @@ SDLTest_TestSuiteReference sdltestTestSuite = {
     sdltestTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_stdlib.c

@@ -595,5 +595,3 @@ SDLTest_TestSuiteReference stdlibTestSuite = {
     stdlibTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_surface.c

@@ -818,5 +818,3 @@ SDLTest_TestSuiteReference surfaceTestSuite = {
     _surfaceTearDown
 
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_syswm.c

@@ -53,5 +53,3 @@ SDLTest_TestSuiteReference syswmTestSuite = {
     syswmTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_timer.c

@@ -195,5 +195,3 @@ SDLTest_TestSuiteReference timerTestSuite = {
     timerTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testautomation_video.c

@@ -1924,5 +1924,3 @@ SDLTest_TestSuiteReference videoTestSuite = {
     videoTests,
     NULL
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testbounds.c

@@ -36,5 +36,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testcustomcursor.c

@@ -320,5 +320,3 @@ int main(int argc, char *argv[])
     /* keep the compiler happy ... */
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testdisplayinfo.c

@@ -91,5 +91,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testdraw2.c

@@ -308,5 +308,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testdrawchessboard.c

@@ -132,5 +132,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testdropfile.c

@@ -94,5 +94,3 @@ int main(int argc, char *argv[])
     /* keep the compiler happy ... */
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testerror.c

@@ -79,5 +79,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testevdev.c

@@ -1040,5 +1040,3 @@ int main(int argc, char *argv[])
 {
     return run_test() ? 0 : 1;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testfile.c

@@ -356,5 +356,3 @@ int main(int argc, char *argv[])
     cleanup();
     return 0; /* all ok */
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testfilesystem.c

@@ -57,5 +57,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgamecontroller.c

@@ -961,5 +961,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgeometry.c

@@ -262,5 +262,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgl2.c

@@ -428,5 +428,3 @@ int main(int argc, char *argv[])
 }
 
 #endif /* HAVE_OPENGL */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgles.c

@@ -339,5 +339,3 @@ int main(int argc, char *argv[])
 }
 
 #endif /* HAVE_OPENGLES */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgles2.c

@@ -899,5 +899,3 @@ int main(int argc, char *argv[])
 }
 
 #endif /* HAVE_OPENGLES2 */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testgles2_sdf.c

@@ -788,5 +788,3 @@ int main(int argc, char *argv[])
 }
 
 #endif /* HAVE_OPENGLES2 */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testhaptic.c

@@ -363,5 +363,3 @@ HapticPrintSupported(SDL_Haptic *ptr)
         SDL_Log("      status\n");
     }
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testhittesting.c

@@ -139,5 +139,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testhotplug.c

@@ -133,5 +133,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testiconv.c

@@ -95,5 +95,3 @@ int main(int argc, char *argv[])
     SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Total errors: %d\n", errors);
     return errors ? errors + 1 : 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testime.c

@@ -790,5 +790,3 @@ int main(int argc, char *argv[])
     SDLTest_CommonQuit(state);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testintersections.c

@@ -371,5 +371,3 @@ int main(int argc, char *argv[])
     }
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testjoystick.c

@@ -319,5 +319,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testkeys.c

@@ -35,5 +35,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testloadso.c

@@ -76,5 +76,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return retval;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testlocale.c

@@ -63,5 +63,3 @@ int main(int argc, char **argv)
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testlock.c

@@ -127,5 +127,3 @@ int main(int argc, char *argv[])
 
     return 0; /* Never reached */
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testmessage.c

@@ -210,5 +210,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testmouse.c

@@ -295,5 +295,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testmultiaudio.c

@@ -199,5 +199,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testnative.c

@@ -198,5 +198,3 @@ int main(int argc, char *argv[])
 
     return 0; /* to prevent compiler warning */
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testnativew32.c

@@ -86,5 +86,3 @@ DestroyWindowNative(void *window)
 }
 
 #endif
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testnativex11.c

@@ -53,5 +53,3 @@ DestroyWindowX11(void *window)
 }
 
 #endif
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testoffscreen.c

@@ -164,5 +164,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testoverlay2.c

@@ -511,5 +511,3 @@ int main(int argc, char **argv)
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testplatform.c

@@ -461,5 +461,3 @@ int main(int argc, char *argv[])
 
     return status;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testpower.c

@@ -75,5 +75,3 @@ int main(int argc, char *argv[])
 }
 
 /* end of testpower.c ... */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testqsort.c

@@ -99,5 +99,3 @@ int main(int argc, char *argv[])
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testrelative.c

@@ -130,5 +130,3 @@ int main(int argc, char *argv[])
     SDLTest_CommonQuit(state);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testrendercopyex.c

@@ -170,5 +170,3 @@ int main(int argc, char *argv[])
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testrendertarget.c

@@ -284,5 +284,3 @@ int main(int argc, char *argv[])
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testresample.c

@@ -118,5 +118,3 @@ int main(int argc, char **argv)
 } /* main */
 
 /* end of testresample.c ... */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testrumble.c

@@ -135,5 +135,3 @@ int main(int argc, char **argv)
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testscale.c

@@ -161,5 +161,3 @@ int main(int argc, char *argv[])
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testsem.c

@@ -282,5 +282,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testsensor.c

@@ -118,5 +118,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testshader.c

@@ -521,5 +521,3 @@ int main(int argc, char *argv[])
 }
 
 #endif /* HAVE_OPENGL */
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testshape.c

@@ -206,5 +206,3 @@ int main(int argc, char **argv)
 
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testsprite2.c

@@ -585,5 +585,3 @@ int main(int argc, char *argv[])
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testspriteminimal.c

@@ -142,5 +142,3 @@ int main(int argc, char *argv[])
 
     return 0; /* to prevent compiler warning */
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/teststreaming.c

@@ -193,5 +193,3 @@ int main(int argc, char **argv)
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testsurround.c

@@ -200,5 +200,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testthread.c

@@ -137,5 +137,3 @@ int main(int argc, char *argv[])
     SDL_Quit(); /* Never reached */
     return 0;   /* Never reached */
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testtimer.c

@@ -136,5 +136,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testurl.c

@@ -41,5 +41,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testutils.c

@@ -149,5 +149,3 @@ LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent,
     }
     return texture;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testver.c

@@ -40,5 +40,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testviewport.c

@@ -226,5 +226,3 @@ int main(int argc, char *argv[])
     quit(0);
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testvulkan.c

@@ -1154,5 +1154,3 @@ int main(int argc, char **argv)
 }
 
 #endif
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testwm2.c

@@ -293,5 +293,3 @@ int main(int argc, char *argv[])
     /* keep the compiler happy ... */
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testyuv.c

@@ -444,5 +444,3 @@ int main(int argc, char **argv)
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/testyuv_cvt.c

@@ -294,5 +294,3 @@ int CalculateYUVPitch(Uint32 format, int width)
         return 0;
     }
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

test/torturethread.c

@@ -109,5 +109,3 @@ int main(int argc, char *argv[])
     SDL_Quit();
     return 0;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */