Updated for the new 3.2 godot branch - Threading/Semaphore refactor -…

… (f15f5b45781eb3de8e5811400f654e3e49580149).

thread_pool.cpp

@@ -400,18 +400,10 @@ ThreadPool::ThreadPool() {
 			ThreadPoolContext *context = memnew(ThreadPoolContext);
 
 			context->running = true;
-#if VERSION_MAJOR < 4
-			context->semaphore = Semaphore::create();
-#else
 			context->semaphore = memnew(Semaphore);
-#endif
 
-#if VERSION_MAJOR < 4
-			context->thread = Thread::create(ThreadPool::_worker_thread_func, context);
-#else
 			context->thread = memnew(Thread());
 			context->thread->start(ThreadPool::_worker_thread_func, context);
-#endif
 
 			_threads.write[i] = context;
 		}
@@ -431,11 +423,7 @@ ThreadPool::~ThreadPool() {
 	for (int i = 0; i < _threads.size(); ++i) {
 		ThreadPoolContext *context = _threads.get(i);
 
-#if VERSION_MAJOR < 4
-		Thread::wait_to_finish(context->thread);
-#else
 		context->thread->wait_to_finish();
-#endif
 
 		memdelete(context->thread);
 		memdelete(context->semaphore);