SocialNetwork::onSocNetGroupDelete

static function onSocNetGroupDelete($groupId)
{
	BitrixLandingSiteType::setScope(
		BitrixLandingSiteType::SCOPE_CODE_GROUP
	);
	$bindings = BindingGroup::getList($groupId);
	foreach ($bindings as $binding)
	{
		if ($binding['ENTITY_TYPE'] == BindingGroup::ENTITY_TYPE_SITE)
		{
			Site::delete($binding['ENTITY_ID'], true)->isSuccess();
		}
	}
}