We've moved external trackers to service, remove from gitlab.yml.

    # The default is 'tmp/repositories' relative to the root of the Rails app.

    # repository_downloads_path: tmp/repositories

  ## External issues trackers

  issues_tracker:

    # redmine:

    #   title: "Redmine"

    #   ## If not nil, link 'Issues' on project page will be replaced with this

    #   ## Use placeholders:

    #   ##  :project_id        - GitLab project identifier

    #   ##  :issues_tracker_id - Project Name or Id in external issue tracker

    #   project_url: "http://redmine.sample/projects/:issues_tracker_id"

    #

    #   ## If not nil, links from /#\d/ entities from commit messages will replaced with this

    #   ## Use placeholders:

    #   ##  :project_id        - GitLab project identifier

    #   ##  :issues_tracker_id - Project Name or Id in external issue tracker

    #   ##  :id                - Issue id (from commit messages)

    #   issues_url: "http://redmine.sample/issues/:id"

    #

    #   ## If not nil, links to creating new issues will be replaced with this

    #   ## Use placeholders:

    #   ##  :project_id        - GitLab project identifier

    #   ##  :issues_tracker_id - Project Name or Id in external issue tracker

    #   new_issue_url: "http://redmine.sample/projects/:issues_tracker_id/issues/new"

    #

    # jira:

    #   title: "Atlassian Jira"

    #   project_url: "http://jira.sample/issues/?jql=project=:issues_tracker_id"

    #   issues_url: "http://jira.sample/browse/:id"

    #   new_issue_url: "http://jira.sample/secure/CreateIssue.jspa"

  ## Gravatar

  ## For Libravatar see: http://doc.gitlab.com/ce/customization/libravatar.html

  gravatar: