Revert "Merge branch '86-follow-up-from-use-gl_repository-if-present-when-enqueing-sidekiq-postreceive-jobs' into 'master'"

This reverts commit fa634351, reversing
changes made to 62af7f6a.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

In the main Rails app we use exactly the same code for
/api/v3/internal and /api/v4/internal
This means that we can move gitlab-shell to V4 in preparation
for sunsetting V3

Workaround for a bug in the HTTPUNIX client.

- Required changes to GitLab Shell include the actual handling of the `git-lfs-authenticate` command and the retrieval of the correct credentials.

Closes gitlab-org/gitlab-ce#17329

This provides the integration point to the internal API to get the
ssh key from the internal API.

Expect broadcast message API endpoint to return 200 with empty JSON if
no broadcast messages available

This reverts commit f8453da5.

At least the following things were broken:
- missing require for 'gitlab_access_status' in lib/gitlab_net.rb
- gitlabhq master internal API returns 'true' or 'false', gitlab-shell
  expects JSON

This reverts commit 11311a95, reversing
changes made to 45444597.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>