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/power/SDL_power.c

@@ -115,5 +115,3 @@ SDL_GetPowerInfo(int *seconds, int *percent)
     *percent = -1;
     return SDL_POWERSTATE_UNKNOWN;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/SDL_syspower.h

@@ -45,5 +45,3 @@ SDL_bool SDL_GetPowerInfo_Emscripten(SDL_PowerState *, int *, int *);
 /* SDL_bool SDL_GetPowerInfo_Hardwired(SDL_PowerState *, int *, int *);*/
 
 #endif /* SDL_syspower_h_ */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/android/SDL_syspower.c

@@ -59,5 +59,3 @@ SDL_GetPowerInfo_Android(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_ANDROID */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/emscripten/SDL_syspower.c

@@ -57,5 +57,3 @@ SDL_GetPowerInfo_Emscripten(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_EMSCRIPTEN */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/haiku/SDL_syspower.c

@@ -122,5 +122,3 @@ SDL_GetPowerInfo_Haiku(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_HAIKU */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/linux/SDL_syspower.c

@@ -644,5 +644,3 @@ SDL_GetPowerInfo_Linux_org_freedesktop_upower(SDL_PowerState *state, int *second
 
 #endif /* SDL_POWER_LINUX */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/macos/SDL_syspower.c

@@ -184,5 +184,3 @@ SDL_GetPowerInfo_MacOSX(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_MACOSX */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/n3ds/SDL_syspower.c

@@ -104,5 +104,3 @@ GetBatteryPercentage(void)
 }
 
 #endif /* !SDL_POWER_DISABLED && SDL_POWER_N3DS */
-
-/* vi: set sts=4 ts=4 sw=4 expandtab: */

src/power/psp/SDL_syspower.c

@@ -61,5 +61,3 @@ SDL_GetPowerInfo_PSP(SDL_PowerState *state, int *seconds,
 
 #endif /* SDL_POWER_PSP */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/uikit/SDL_syspower.h

@@ -26,5 +26,3 @@ void SDL_UIKit_UpdateBatteryMonitoring(void);
 SDL_bool SDL_GetPowerInfo_UIKit(SDL_PowerState *state, int *seconds, int *percent);
 
 #endif /* SDL_POWER_UIKIT */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/uikit/SDL_syspower.m

@@ -104,5 +104,3 @@ SDL_GetPowerInfo_UIKit(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_UIKIT */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/vita/SDL_syspower.c

@@ -61,5 +61,3 @@ SDL_GetPowerInfo_VITA(SDL_PowerState *state, int *seconds,
 
 #endif /* SDL_POWER_VITA */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/windows/SDL_syspower.c

@@ -69,5 +69,3 @@ SDL_GetPowerInfo_Windows(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_WINDOWS */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */

src/power/winrt/SDL_syspower.cpp

@@ -37,5 +37,3 @@ SDL_GetPowerInfo_WinRT(SDL_PowerState *state, int *seconds, int *percent)
 
 #endif /* SDL_POWER_WINRT */
 #endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */