In T318457 and T293182, we added two (temporary) config flags:
- GEMentorshipUseIsActiveFlag, to control whether the "is mentee active" database flag is used.
- GERecentChangesUnstarredMenteesFilterEnabled, to control whether the recent changes filters are fixed
Once we have the RC filters working fine in arwiki/enwiki/fawiki, we can safely remove both variables.