Merge branch 'admin-groups-form-scb' into 'master'

Resolve CE/EE diffs in admin groups form

Closes gitlab-ee#11042

See merge request gitlab-org/gitlab-ce!28365

app/views/admin/groups/_form.html.haml

@@ -2,7 +2,7 @@
   = form_errors(@group)
   = render 'shared/group_form', f: f
 
-  = render_if_exists 'shared/repository_size_limit_setting', form: f, type: :group
+  = render_if_exists 'shared/old_repository_size_limit_setting', form: f, type: :group
   = render_if_exists 'admin/namespace_plan', f: f
 
   .form-group.row.group-description-holder