chore: Deprecates 3.0 consented feature flags (#23785)

RESOURCES/FEATURE_FLAGS.md

@@ -27,17 +27,11 @@ These features are considered **unfinished** and should only be used on developm
 
 [//]: # "PLEASE KEEP THE LIST SORTED ALPHABETICALLY"
 
-- CLIENT_CACHE
-- DASHBOARD_CACHE
-- DASHBOARD_NATIVE_FILTERS_SET
-- DISABLE_DATASET_SOURCE_EDIT
 - DRILL_BY
 - ENABLE_ADVANCED_DATA_TYPES
-- ENABLE_EXPLORE_JSON_CSRF_PROTECTION
 - ENABLE_TEMPLATE_REMOVE_FILTERS
 - KV_STORE
 - PRESTO_EXPAND_DATA
-- REMOVE_SLICE_LEVEL_LABEL_COLORS
 - SHARE_QUERIES_VIA_KV_STORE
 - TAGGING_SYSTEM
 
@@ -51,8 +45,6 @@ These features are **finished** but currently being tested. They are usable, but
 - ALLOW_FULL_CSV_EXPORT
 - CACHE_IMPERSONATION
 - CONFIRM_DASHBOARD_DIFF
-- DASHBOARD_EDIT_CHART_IN_NEW_TAB
-- DASHBOARD_FILTERS_EXPERIMENTAL
 - DASHBOARD_VIRTUALIZATION
 - DRILL_BY
 - DRILL_TO_DETAIL
@@ -98,5 +90,12 @@ These features flags currently default to True and **will be removed in a future
 
 [//]: # "PLEASE KEEP THE LIST SORTED ALPHABETICALLY"
 
+- CLIENT_CACHE
+- DASHBOARD_CACHE
+- DASHBOARD_FILTERS_EXPERIMENTAL
 - DASHBOARD_NATIVE_FILTERS
+- DASHBOARD_NATIVE_FILTERS_SET
+- DISABLE_DATASET_SOURCE_EDIT
+- ENABLE_EXPLORE_JSON_CSRF_PROTECTION
 - GENERIC_CHART_AXES
+- REMOVE_SLICE_LEVEL_LABEL_COLORS