Merge branch '6354-clusters-show' into 'master'

Removes EE differences for clusters/show

Closes gitlab-ee#6354

See merge request gitlab-org/gitlab-ce!26324

app/views/clusters/clusters/show.html.haml

@@ -34,6 +34,8 @@
     = render 'banner'
     = render 'form'
 
+  = render_if_exists 'health'
+
   .cluster-applications-table#js-cluster-applications
 
   %section.settings#js-cluster-details{ class: ('expanded' if expanded) }