Clemens Beck authored Jul 15, 2024 and Balasankar 'Balu' C committed Jul 15, 2024

Remove the Grafana deprecation message which was accidentally re-added
in https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/7550.

Relates https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/8601

Relates https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/8200