Clean up docs redirects, ee - 2024-07-26

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/160837



Merged-by: Lorena Ciutacu <lciutacu@gitlab.com>
Approved-by: Lorena Ciutacu <lciutacu@gitlab.com>
Co-authored-by: Ashraf Khamis <akhamis@gitlab.com>