Small review fixes

app/views/projects/services/prometheus/_show.html.haml

@@ -10,7 +10,7 @@
       = link_to s_('PrometheusService|More information'), help_page_path('user/project/integrations/prometheus')
 
   .col-lg-9
-    .panel.panel-default.custom-monitored-metrics.js-panel-custom-monitored-metrics{ data: { "active-custom-metrics" => "#{project_prometheus_metrics_path(@project, :json)}" } }
+    .panel.panel-default.custom-monitored-metrics.js-panel-custom-monitored-metrics{ data: { active_custom_metrics: project_prometheus_metrics_path(@project, :json) } }
       .panel-heading
         %h3.panel-title
           = s_('PrometheusService|Custom application metrics')
@@ -28,7 +28,7 @@
           = link_to s_('PrometheusService|New metric'), new_project_prometheus_metric_path(@project), class: 'btn btn-success'
         %ul.list-unstyled.metrics-list.hidden.js-custom-metrics-list
 
-    .panel.panel-default.js-panel-monitored-metrics{ data: { "active-metrics" => "#{active_common_project_prometheus_metrics_path(@project, :json)}" } }
+    .panel.panel-default.js-panel-monitored-metrics{ data: { active_metrics: active_common_project_prometheus_metrics_path(@project, :json) } }
       .panel-heading
         %h3.panel-title
           = s_('PrometheusService|Common metrics')

spec/ee/spec/controllers/projects/prometheus/metrics_controller_spec.rb

@@ -104,7 +104,7 @@ describe Projects::Prometheus::MetricsController do
     context 'format json' do
       let!(:metric) { create(:prometheus_metric, project: project) }
 
-      it 'remove the metric' do
+      it 'destroys the metric' do
         delete :destroy, project_params(id: metric.id, format: :json)
 
         expect(response).to have_gitlab_http_status(200)