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

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

--HG--
branch : trunk

src/game/OutdoorPvP.cpp

@@ -116,7 +116,6 @@ bool OPvPCapturePoint::DelCreature(uint32 type)
     // Don't save respawn time
     cr->SetRespawnTime(0);
     cr->RemoveCorpse();
-    cr->CleanupsBeforeDelete();
     // explicit removal from map
     // beats me why this is needed, but with the recent removal "cleanup" some creatures stay in the map if "properly" deleted
     // so this is a big fat workaround, if AddObjectToRemoveList and DoDelayedMovesAndRemoves worked correctly, this wouldn't be needed