After T95184: Tracking: Remove Bugzilla from production (or right before):
- Update phab.wm.org frontpage
- Update references on https://www.mediawiki.org/wiki/Phabricator/versus_Bugzilla (e.g. regarding votes and saved searches)
- Remove "Migrating your Bugzilla votes" on https://www.mediawiki.org/wiki/Phabricator/Help