EE: SQL performance improvements for ProjectsController#show
This is the EE version of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14226 with the merge conflicts resolved.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This is the EE version of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14226 with the merge conflicts resolved.