Resolve Rails 4 spec failure

The `params` keyword argument only works in Rails 5. Removing it will
cause a Rails 4 deprecation warning, but that's better than not working
at all.

spec/controllers/admin/requests_profiles_controller_spec.rb

@@ -38,7 +38,7 @@ describe Admin::RequestsProfilesController do
     end
     it 'loads an HTML profile' do
-      get :show, params: { name: basename }
+      get :show, name: basename
       expect(response).to have_gitlab_http_status(200)
       expect(response.body).to eq(sample_data)