Merge branch 'rails5-ee-deprecation-render-nothing' into 'master'

Rails5 deprecation: render :nothing option is deprecated, Use head method to respond with empty response body.

See merge request gitlab-org/gitlab-ee!8560

ee/app/controllers/projects/managed_licenses_controller.rb

@@ -93,7 +93,7 @@ class Projects::ManagedLicensesController < Projects::ApplicationController
   end
 
   def render_ok
-    render status: :ok, nothing: true
+    head :ok
   end
 
   def render_software_license_policy

ee/changelogs/unreleased/rails5-ee-deprecation-render-nothing.yml

+---
+title: render :nothing option is deprecated, Use head method to respond with empty
+  response body.
+merge_request: 8560
+author: Jasper Maes
+type: other

ee/spec/controllers/concerns/ee/project_unauthorized_spec.rb

@@ -13,7 +13,7 @@ describe EE::ProjectUnauthorized do
   describe '#project_unauthorized_proc' do
     controller(::Projects::ApplicationController) do
       def show
-        render nothing: true
+        head :ok
       end
     end