protected function deleteEntityFinish(array $listTitle, $table)
 {
     if ($table && $listTitle) {
         try {
             $this->countItemsDeleted += $this->_connection->delete($this->_connection->getTableName($table), $this->_connection->quoteInto('customer_group_code IN (?)', $listTitle));
             return true;
         } catch (\Exception $e) {
             return false;
         }
     } else {
         return false;
     }
 }