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/joystick/windows/SDL_xinputjoystick.c

@@ -602,5 +602,3 @@ void SDL_XINPUT_JoystickQuit(void)
 }
 
 #endif /* SDL_JOYSTICK_XINPUT */
-
-/* vi: set ts=4 sw=4 expandtab: */