/**
  * @title "Remove Config Duplicates"
  * @description "Remove Configuration Duplicates"
  * @confirm "Are you sure?"
  * @new_line
  */
 public function removeConfigsDuplicatesAction()
 {
     /** @var $installerInstance Ess_M2ePro_Model_Upgrade_MySqlSetup */
     $installerInstance = new Ess_M2ePro_Model_Upgrade_MySqlSetup('M2ePro_setup');
     $installerInstance->removeConfigsDuplicates();
     Mage::helper('M2ePro/Module')->clearCache();
     $this->_getSession()->addSuccess('Remove duplicates was successfully completed.');
     $this->_redirectUrl(Mage::helper('M2ePro/View_Development')->getPageToolsTabUrl());
 }