Core/Entities: Remove heartbeat update packet from Unit::SendMonsterStop()

(Also makes NPCs stop jumping when talked to - no more scared NPCs thankyou)

--HG--
branch : trunk

src/server/game/Entities/Unit/Unit.cpp

@@ -14336,11 +14336,6 @@ void Unit::StopMoving()
     //Relocate(GetPositionX(), GetPositionY(),GetPositionZ());
 
     SendMonsterStop();
-
-    // update position and orientation;
-    WorldPacket data;
-    BuildHeartBeatMsg(&data);
-    SendMessageToSet(&data,false);
 }
 
 void Unit::SendMovementFlagUpdate()