Remove a redundant warning already covered by the commit messages check
What does this MR do?
The warning is already covered by https://gitlab.com/gitlab-org/gitlab/-/blob/master/danger/commit_messages/Dangerfile.
Edited by Rémy Coutable
The warning is already covered by https://gitlab.com/gitlab-org/gitlab/-/blob/master/danger/commit_messages/Dangerfile.