Conference::canUserDelete

public function canUserDelete($userId): bool
{
	if (Loader::includeModule('bitrix24'))
	{
		$isAdmin = CBitrix24::IsPortalAdmin($userId);
	}
	else
	{
		$user = new CUser();
		$arGroups = $user::GetUserGroup($userId);
		$isAdmin = in_array(1, $arGroups, true);
	}

	return $isAdmin || $this->getHostId() === $userId;
}