Delete possessed AI only on creature delete.

--HG--
branch : trunk

src/game/Player.cpp

@@ -18896,8 +18896,8 @@ void Player::RemovePossess(bool attack)
             if(attack)
                 target->AddThreat(this, 1000000.0f);
         }
-        // Delete the assigned possessed AI
-        ((Creature*)target)->DeletePossessedAI();
+        // Disable the assigned possessed AI
+        ((Creature*)target)->DisablePossessedAI();
     }
 }