[8102] Simplify code base at new root method WorldObject::CleanupsBeforeDelete

* Call it from Map::AddObjectToRemoveList and remove now not needed explcit calls
* Create Gameobject version to make GO with owner more safe for remove

src/game/Vehicle.cpp

@@ -92,6 +92,5 @@ void Vehicle::Dismiss()
 {
     SendObjectDeSpawnAnim(GetGUID());
     CombatStop();
-    CleanupsBeforeDelete();
     AddObjectToRemoveList();
 }