This removes the need for patching lib/gitlab.rb in gitlab-rails since the revision is now read from the REVISION file when present.
Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/46600.
Supports https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/19125 / https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/5832.
This needs to be released in the same release as https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/19125 / https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/5832.
Edited by GitLab Release Tools Bot