Remove CustomMetricsHelper from EE module

app/helpers/custom_metrics_helper.rb

 # frozen_string_literal: true
 
-module EE
-  module CustomMetricsHelper
-    def custom_metrics_data(project, metric)
-      custom_metrics_path = project.namespace.becomes(::Namespace)
+module CustomMetricsHelper
+  def custom_metrics_data(project, metric)
+    custom_metrics_path = project.namespace.becomes(::Namespace)
 
-      {
-        'custom-metrics-path' => url_for([custom_metrics_path, project, metric]),
-        'metric-persisted' => metric.persisted?.to_s,
-        'edit-project-service-path' => edit_project_service_path(project, PrometheusService),
-        'validate-query-path' => validate_query_project_prometheus_metrics_path(project),
-        'title' => metric.title.to_s,
-        'query' => metric.query.to_s,
-        'y-label' => metric.y_label.to_s,
-        'unit' => metric.unit.to_s,
-        'group' => metric.group.to_s,
-        'legend' => metric.legend.to_s
-      }
-    end
+    {
+      'custom-metrics-path' => url_for([custom_metrics_path, project, metric]),
+      'metric-persisted' => metric.persisted?.to_s,
+      'edit-project-service-path' => edit_project_service_path(project, PrometheusService),
+      'validate-query-path' => validate_query_project_prometheus_metrics_path(project),
+      'title' => metric.title.to_s,
+      'query' => metric.query.to_s,
+      'y-label' => metric.y_label.to_s,
+      'unit' => metric.unit.to_s,
+      'group' => metric.group.to_s,
+      'legend' => metric.legend.to_s
+    }
   end
 end