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

src/filesystem/android/SDL_sysfilesystem.c

@@ -53,5 +53,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_ANDROID */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/cocoa/SDL_sysfilesystem.m

@@ -133,5 +133,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_COCOA */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/dummy/SDL_sysfilesystem.c

@@ -40,5 +40,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_DUMMY || SDL_FILESYSTEM_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/emscripten/SDL_sysfilesystem.c

@@ -86,5 +86,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_EMSCRIPTEN */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/haiku/SDL_sysfilesystem.cc

@@ -102,5 +102,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_HAIKU */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/n3ds/SDL_sysfilesystem.c

@@ -84,5 +84,3 @@ CreatePrefPathDir(const char *pref)
 }
 
 #endif /* SDL_FILESYSTEM_N3DS */
-
-/* vi: set sts=4 ts=4 sw=4 expandtab: */

src/filesystem/ps2/SDL_sysfilesystem.c

@@ -105,5 +105,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_PS2 */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/psp/SDL_sysfilesystem.c

@@ -72,5 +72,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_PSP */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/riscos/SDL_sysfilesystem.c

@@ -202,5 +202,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_RISCOS */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/unix/SDL_sysfilesystem.c

@@ -333,5 +333,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_UNIX */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/vita/SDL_sysfilesystem.c

@@ -86,5 +86,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* SDL_FILESYSTEM_VITA */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/windows/SDL_sysfilesystem.c

@@ -183,5 +183,3 @@ SDL_GetPrefPath(const char *org, const char *app)
     return NULL;
 }
 #endif /* SDL_FILESYSTEM_XBOX */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/filesystem/winrt/SDL_sysfilesystem.cpp

@@ -233,5 +233,3 @@ SDL_GetPrefPath(const char *org, const char *app)
 }
 
 #endif /* __WINRT__ */
-
-/* vi: set ts=4 sw=4 expandtab: */