[8.10] Don't show comment button in gutter of diffs on MR discussion tab
8-10-stable
counterpart to https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5492
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
8-10-stable
counterpart to https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5492