public function removeByLocationIdAndClassId($locationId, $classId) {
    $query = $this->db->select('openy_pef_gxp_mapping', 'm')
      ->condition('location_id', $locationId)
      ->condition('product_id', $classId)
      ->fields('m', ['id']);

    $ids = $query->execute()->fetchCol();
    if (!$ids) {
      return;
    }

    $this->removeByChunk($ids);
  }