hide mirror-server from several lists / forms

interface/lib/classes/custom_datasource.inc.php

interface/web/admin/list/firewall.list.php

interface/web/admin/list/server_ip.list.php

interface/web/admin/list/server_ip_map.list.php

interface/web/admin/list/server_php.list.php

interface/web/mail/list/mail_blacklist.list.php

interface/web/mail/list/mail_content_filter.list.php

interface/web/mail/list/mail_get.list.php

interface/web/mail/list/mail_relay_recipient.list.php

interface/web/mail/list/mail_spamfilter.list.php

interface/web/mail/list/mail_transport.list.php

interface/web/mail/list/mail_whitelist.list.php

interface/web/mail/list/spamfilter_blacklist.list.php

interface/web/mail/list/spamfilter_users.list.php

interface/web/mail/list/spamfilter_whitelist.list.php

interface/web/sites/list/cron.list.php

interface/web/sites/list/database.list.php

interface/web/sites/list/ftp_user.list.php

interface/web/sites/list/shell_user.list.php

interface/web/sites/list/web_childdomain.list.php