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/sensor/coremotion/SDL_coremotionsensor.h

@@ -25,5 +25,3 @@ struct sensor_hwdata
 {
     float data[3];
 };
-
-/* vi: set ts=4 sw=4 expandtab: */

src/sensor/coremotion/SDL_coremotionsensor.m

@@ -212,5 +212,3 @@ SDL_SensorDriver SDL_COREMOTION_SensorDriver = {
 };
 
 #endif /* SDL_SENSOR_COREMOTION */
-
-/* vi: set ts=4 sw=4 expandtab: */