Set ttl-days default removal

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/120952



Merged-by: Amy Qualls <aqualls@gitlab.com>
Approved-by: Amy Qualls <aqualls@gitlab.com>
Reviewed-by: Phillip Wells <pwells@gitlab.com>
Co-authored-by: Torsten Linz <tlinz@gitlab.com>
Co-authored-by: phillipwells <pwells@gitlab.com>