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/SDL_log.c

@@ -501,5 +501,3 @@ void SDL_LogSetOutputFunction(SDL_LogOutputFunction callback, void *userdata)
     SDL_log_function = callback;
     SDL_log_userdata = userdata;
 }
-
-/* vi: set ts=4 sw=4 expandtab: */