Remove workaround to avoid race conditions

src/advanced-scene-switcher.cpp

@@ -155,6 +155,7 @@ void SwitcherData::Thread()
 
 	while (true) {
 		std::unique_lock<std::mutex> lock(m);
+		mainLoopLock = &lock;
 
 		bool match = false;
 		OBSWeakSource scene;
@@ -230,19 +231,6 @@ void SwitcherData::Thread()
 
 		ClearWebsocketMessages();
 
-		// After this point we will call frontend functions like
-		// obs_frontend_set_current_scene() and
-		// obs_frontend_set_current_transition()
-		//
-		// During this time SaveSceneSwitcher() could be called
-		// leading to a deadlock with the frontend function being stuck
-		// in QMetaObject::invokeMethod() holding the mutex and
-		// OBS being stuck in SaveSceneSwitcher().
-		//
-		// So we have to unlock() risking race conditions as these are
-		// less frequent than the above described deadlock
-		lock.unlock();
-
 		if (match) {
 			if (macroMatch) {
 				runMacros();