Merge branch 'revert-828357fb' into 'master'

Revert "Merge branch 'zj-n-1-root-show' into 'master'"

See merge request gitlab-org/gitlab-ce!17243

app/controllers/root_controller.rb

@@ -13,7 +13,10 @@ class RootController < Dashboard::ProjectsController
   before_action :redirect_logged_user, if: -> { current_user.present? }
 
   def index
-    super
+    # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37434
+    Gitlab::GitalyClient.allow_n_plus_1_calls do
+      super
+    end
   end
 
   private