Cleanup Android input on render thread settings

Follow up to https://github.com/godotengine/godot/pull/93933
Clean up the set of settings use to control whether Android input should be dispatched on the render thread.

Addresses comments in https://github.com/godotengine/godot/pull/93933#issuecomment-2210437977

platform/android/display_server_android.cpp

@@ -651,7 +651,6 @@ DisplayServerAndroid::DisplayServerAndroid(const String &p_rendering_driver, Dis
 #endif
 
 	Input::get_singleton()->set_event_dispatch_function(_dispatch_input_events);
-	Input::get_singleton()->set_use_input_buffering(true); // Needed because events will come directly from the UI thread
 
 	r_error = OK;
 }