Use centralized Mercurial `access_level` method in HgHttpController
This is a tightening up change to be done after 0.8.0rc1: now that we have this centralized method in lib/gitlab
, let's remove the duplication from the controller.
This is a tightening up change to be done after 0.8.0rc1: now that we have this centralized method in lib/gitlab
, let's remove the duplication from the controller.