Merge branch 'docs-clean-redirects-2023-09-11' into 'master'

Clean up docs redirects, omnibus - 2023-09-11

See merge request https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/7135

Merged-by: Jon Glassman <[email protected]>
Approved-by: Jon Glassman <[email protected]>
Co-authored-by: Evan Read <[email protected]>

Author: Jon Glassman

doc/settings/grafana.md

@@ -13,7 +13,6 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 - [Environment variables](environment-variables.md)
 - [Gitaly Cluster](praefect.md)
 - [`gitlab.yml`](gitlab.yml.md)
-- [Grafana](grafana.md)
 - [LDAP](https://docs.gitlab.com/ee/administration/auth/ldap/index.html)
 - [Logs](logs.md)
 - [Mattermost](https://docs.gitlab.com/ee/integration/mattermost/)