Fixed memory leak and removed debug code from Windows sensor implementation

test/testgamecontroller.c

@@ -261,6 +261,8 @@ main(int argc, char *argv[])
     /* Enable standard application logging */
     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
 
+	SDL_SetHint( SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1" );
+
     /* Initialize SDL (Note: video is required to start event loop) */
     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER ) < 0) {
         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());