These obsolete feature flags are only ever mentioned in GrowthExperiments and can straight-forwardly be removed. There should have one commit per feature flag that removes all mentions of it:
- GEHelpPanelEnabled
- WelcomeSurveyEnabled
- GEHomepageEnabled
- GEHomepageLoggingEnabled
- GEConfirmEmailEnabled
The following feature flags also still exist in mediawiki-config in addition to Growth-Experiments and must be removed from there as well:
- GELevelingUpFeaturesEnabled removed from GrowthExperiments
- GELevelingUpFeaturesEnabled removed from mediawiki-config
- GEMentorDashboardEnabled removed from GrowthExperiments
- GEMentorDashboardEnabled removed from mediawiki-config