GameActivity PATCH: remove unused variable

Author: rib

android-activity/game-activity-csrc/game-activity/native_app_glue/android_native_app_glue.c

@@ -402,7 +402,6 @@ static void onSaveInstanceState(GameActivity* activity,
   LOGV("SaveInstanceState: %p", activity);
 
   struct android_app* android_app = ToApp(activity);
-  void* savedState = NULL;
   pthread_mutex_lock(&android_app->mutex);
   android_app->stateSaved = 0;
   android_app_write_cmd(android_app, APP_CMD_SAVE_STATE);