public static function deleteListingFieldBySID($listing_field_sid)
 {
     $field_info = SJB_ListingComplexFieldManager::getFieldBySID($listing_field_sid);
     return SJB_ListingFieldDBManager::deleteComplexListingFieldBySID($field_info) && SJB_ListingFieldDBManager::deleteComplexFieldProperties($listing_field_sid);
 }