CompanyGroupTable::deleteByCompanyId

static function deleteByCompanyId($id)
{
	$id = intval($id);
	if ($id <= 0)
		throw new MainArgumentNullException("id");

	$itemsList = static::getList(
		array(
			"filter" => array("COMPANY_ID" => $id),
			"select" => array("ID")
		)
	);
	while ($item = $itemsList->fetch())
		static::delete($item["ID"]);
}