Replace remaining references to ClassDB::register_class() with GDREGISTER_CLASS()

src/register_types.cpp

@@ -11,7 +11,7 @@ void initialize_gdextension_types(ModuleInitializationLevel p_level)
 	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
 		return;
 	}
-	//ClassDB::register_class<YourClass>();
+	//GDREGISTER_CLASS(YourClass);
 }
 
 void uninitialize_gdextension_types(ModuleInitializationLevel p_level) {