protected function dropSectionProperty($iblockId, $propertyName)
{
// Check UF for iblock sections
global $USER_FIELD_MANAGER;
$ent_id = "IBLOCK_" . $iblockId . "_SECTION";
$db_res = CUserTypeEntity::GetList(array('ID' => 'ASC'), array("ENTITY_ID" => $ent_id, "FIELD_NAME" => $propertyName));
if ($db_res && ($r = $db_res->GetNext())) {
$obUserField = new CUserTypeEntity();
$obUserField->delete($r['ID']);
$USER_FIELD_MANAGER->arFieldsCache = array();
}
}
