Core: Warning fixes

src/server/collision/Models/GameObjectModel.cpp

@@ -48,7 +48,10 @@ ModelList model_list;
 
 void LoadGameObjectModelList()
 {
+#ifndef NO_CORE_FUNCS
     uint32 oldMSTime = getMSTime();
+#endif
+
     FILE* model_list_file = fopen((sWorld->GetDataPath() + "vmaps/" + VMAP::GAMEOBJECT_MODELS).c_str(), "rb");
     if (!model_list_file)
     {