Pimcore\Model\Object\Classificationstore\KeyGroupRelation\Dao::delete PHP Method

    public function delete()
    {
        $this->db->delete(self::TABLE_NAME_RELATIONS, $this->db->quoteInto("keyId = ? AND ", $this->model->getKeyId()) . $this->db->quoteInto("groupId = ? ", $this->model->getGroupId()));
    }