Core/Maps: Moved object respawn time storage from global to map level. This removes unneccessary locking since all objects run within its map's thread.

src/server/game/Movement/Spline/MoveSplineInit.cpp

@@ -129,8 +129,7 @@ namespace Movement
     void MoveSplineInit::SetFacing(const Unit * target)
     {
         args.flags.EnableFacingTarget();
-        //args.facing.target = target->GetObjectGuid().GetRawValue();
-        args.facing.target = target->GetUInt64Value(OBJECT_FIELD_GUID);
+        args.facing.target = target->GetGUID();
     }
 
     void MoveSplineInit::SetFacing(float angle)