With T214998: RFC: Serve mobile and desktop variants through the same URL (unified mobile routing) generally in place, consider removal of the mdot subdomains from the configuration API response experiments?format=config&authority=varnish.
Also, now that this is live and done, we can increase our limit of wikis per experiment from 50 to 100. Make it so in validation and announce it (see AC below).
Acceptance Criteria
- announce (maybe tell Timo so it can be included in https://www.mediawiki.org/wiki/Requests_for_comment/Mobile_domain_sunsetting/Techblog)