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

EE: Removes EE differences for clusters/show

See merge request gitlab-org/gitlab-ee!10276

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

@@ -34,9 +34,7 @@
     = render 'banner'
     = render 'form'
 
-  -# EE-specific
-  - if @cluster.project_type? && @cluster.project.feature_available?(:cluster_health)
-    = render 'health'
+  = render_if_exists 'health'
 
   .cluster-applications-table#js-cluster-applications
 

ee/app/views/projects/clusters/_health.html.haml

-%section.settings.no-animate.expanded.cluster-health-graphs#cluster-health
+- if @cluster.project_type? && @cluster.project.feature_available?(:cluster_health)
+  %section.settings.no-animate.expanded.cluster-health-graphs#cluster-health
     %h4= s_('ClusterIntegration|Cluster health')
 
     - if @cluster&.application_prometheus_available?