[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/GameObject.h

@@ -488,6 +488,7 @@ class TRINITY_DLL_SPEC GameObject : public WorldObject
 
         void AddToWorld();
         void RemoveFromWorld();
+        void CleanupsBeforeDelete();
 
         bool Create(uint32 guidlow, uint32 name_id, Map *map, uint32 phaseMask, float x, float y, float z, float ang, float rotation0, float rotation1, float rotation2, float rotation3, uint32 animprogress, GOState go_state, uint32 ArtKit = 0);
         void Update(uint32 p_time);