Merge branch '326057-rspec-feature-flag-failure-for-migrate_delayed_project_removal' into 'master'

Resolve "rspec:feature-flag failure for migrate_delayed_project_removal" [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!57541

changelogs/unreleased/326057-rspec-feature-flag-failure-for-migrate_delayed_project_removal.yml

+---
+title: Removed migrate_delayed_project_removal feature flag
+merge_request: 57541
+author:
+type: other

config/feature_flags/development/migrate_delayed_project_removal.yml

----
-name: migrate_delayed_project_removal
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/53916
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/300207
-milestone: '13.9'
-type: development
-group: group::access
-default_enabled: true