fix(Core/Player): null crash in RemovePet() (#11464)

* closes https://github.com/azerothcore/azerothcore-wotlk/issues/11331

src/server/game/Entities/Player/Player.cpp

@@ -8951,7 +8951,8 @@ void Player::RemovePet(Pet* pet, PetSaveMode mode, bool returnreagent)
 
         return;
     }
-
+    else
+    {
         pet->CombatStop();
 
         if (returnreagent)
@@ -9003,6 +9004,7 @@ void Player::RemovePet(Pet* pet, PetSaveMode mode, bool returnreagent)
             ArenaSpectator::SendCommand_UInt32Value(FindMap(), GetGUID(), "PET", 0);
         }
     }
+}
 
 bool Player::CanPetResurrect()
 {