ExternalLocationMap::unInstall

static function unInstall()
{
	$result = new Result();

	if(!static::isInstalled())
		return $result;

	$con = BitrixMainApplication::getConnection();
	$sqlHelper = $con->getSqlHelper();
	$srvId = $sqlHelper->forSql(static::getExternalServiceId());
	$con->queryExecute("DELETE FROM b_sale_loc_ext WHERE SERVICE_ID=".$srvId);
	ExternalServiceTable::delete($srvId);
	return $result;
}