Merge branch '23868-build-graph-tooltips' into 'master'

Remove tooltips from build nodes

Before:   
<img src="/uploads/48441dccfe39c5eb1da3dbb9a26e6bd2/Screen_Shot_2016-10-26_at_2.43.46_PM.png" width="400px">
After:   
<img src="/uploads/d72b2ad4603c964283e155e5a2b053fe/Screen_Shot_2016-10-26_at_2.43.31_PM.png" width="400px">
Closes #23868

See merge request !7128

app/views/projects/ci/builds/_build_pipeline.html.haml

 - is_playable = subject.playable? && can?(current_user, :update_build, @project)
 - if is_playable
   = link_to play_namespace_project_build_path(subject.project.namespace, subject.project, subject, return_to: request.original_url), method: :post, data: { toggle: 'tooltip', title: "#{subject.name} - play", container: '.pipeline-graph', placement: 'bottom' } do
-    = render_status_with_link('build', 'play')
+    = ci_icon_for_status('play')
     .ci-status-text= subject.name
 - elsif can?(current_user, :read_build, @project)
   = link_to namespace_project_build_path(subject.project.namespace, subject.project, subject), data: { toggle: 'tooltip', title: "#{subject.name} - #{subject.status}", container: '.pipeline-graph', placement: 'bottom' } do
     %span.ci-status-icon
-      = render_status_with_link('build', subject.status)
+      = ci_icon_for_status(subject.status)
     .ci-status-text= subject.name
 - else
   %span.ci-status-icon
-    = render_status_with_link('build', subject.status)
     = ci_icon_for_status(subject.status)

app/views/projects/commit/_pipeline_status_group.html.haml

 - group_status = CommitStatus.where(id: subject).status
 %button.dropdown-menu-toggle.has-tooltip{ type: 'button', data: { toggle: 'dropdown', title: "#{name} - #{group_status}" } }
   %span.ci-status-icon
-    = render_status_with_link('build', group_status)
+    = ci_icon_for_status(group_status)
   %span.ci-status-text
     = name
   %span.badge= subject.size

app/views/projects/generic_commit_statuses/_generic_commit_status_pipeline.html.haml

@@ -2,9 +2,9 @@
   - if subject.target_url
     = link_to subject.target_url do
       %span.ci-status-icon
-        = render_status_with_link('commit status', subject.status)
+        = ci_icon_for_status(subject.status)
       %span.ci-status-text= subject.name
   - else
     %span.ci-status-icon
-      = render_status_with_link('commit status', subject.status)
+      = ci_icon_for_status(subject.status)
     %span.ci-status-text= subject.name