Split from parent per @tgr.
[ ] Drop flagging features
[ ] Drop having multiple tiers of review
[x] Drop tier3 (pristine) support – {41d295479e16e5f8fac08368970f0e75cc045710}
[ ] Drop tier2 (quality) support
[x] Drop having multiple dimensions of review ("tone", "style", etc.)
[x] Drop "tone" and "style" dimensions – {ddb91cf8b29a894450fe3657dca7153be2797859}
[x] Support only one dimension – {3fe0bacc5bb328a676ba7f1ae623bff982a8cba9}
[x] Drop ability to have pages immune from review – {0fe4ed9a6842b04324d7525447f2c80855c5dd74}
[ ] …
[ ] Drop UX features
[] Special pages:
[x] ProblemChanges – {8d8b3822d3ac9d126f69eb0ea39741b3d6ff9849}
[] ReviewedPages https://gerrit.wikimedia.org/r/c/mediawiki/extensions/FlaggedRevs/+/673666/
[] ReviewedVersions
[] QualityOversight
[x] Drop ability to choose which user groups get shown unreviewed versions by default – {50ffcdf7ca938a976fa7ae40158ef9c6d38dd6db}
[ ] …
[ ] Drop extension hooks
[x] Drop FlaggedRevsFRGenericSubmitFormReady hook – {e894afbca50be0dea4bd96a7118769a4a657f4e1}
[ ] Drop FlaggedRevsRevisionReviewFormAfterDoSubmit Hook – {b6291fc8b803a6de84e369ee045e0b9bc3cacd89}
[ ] …