// Retro compatibility for Discount

classes/Group.php

@@ -172,7 +172,6 @@ class GroupCore extends ObjectModel
 			Db::getInstance()->execute('DELETE FROM `'._DB_PREFIX_.'group_reduction` WHERE `id_group` = '.(int)$this->id);
 			Db::getInstance()->execute('DELETE FROM `'._DB_PREFIX_.'product_group_reduction_cache` WHERE `id_group` = '.(int)$this->id);
 			$this->truncateRestrictionsModules($this->id);
-			Discount::deleteByIdGroup((int)$this->id);
 
 			// Refresh cache of feature detachable
 			Configuration::updateGlobalValue('PS_GROUP_FEATURE_ACTIVE', self::isCurrentlyUsed());
@@ -194,8 +193,6 @@ class GroupCore extends ObjectModel
 						1)
 				WHERE `id_default_group` = '.(int)$this->id);
 
-			Discount::deleteByIdGroup($this->id);
-
 			return true;
 		}
 		return false;