Merge branch 'jmontal_remove_ff_timeout_status_check_responses' into 'master'

Remove timeout_status_check_responses feature flag

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/141152



Merged-by: Brett Walker <bwalker@gitlab.com>
Approved-by: Aaron Huntsman <ahuntsman@gitlab.com>
Approved-by: Brett Walker <bwalker@gitlab.com>
Co-authored-by: Jay Montal <jmontal@gitlab.com>