Remove feature flag: `set_delete_failed_container_repository`
What does this MR do and why?
In this MR, we clean up set_delete_failed_container_repository, which is now rolled out to 100% in production.
- Feature issue: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/16611
- Feature flag rollout issue: #490354 (closed)
Related to #490354 (closed)
Edited by Adie (she/her)