removed duplicate route

public/app/routes/routes.ts

@@ -278,11 +278,6 @@ export function setupAngularRoutes($routeProvider, $locationProvider) {
     .when('/alerting', {
       redirectTo: '/alerting/list',
     })
-    .when('/alerting/list', {
-      templateUrl: 'public/app/features/alerting/partials/alert_list.html',
-      controller: 'AlertListCtrl',
-      controllerAs: 'ctrl',
-    })
     .when('/alerting/list', {
       template: '<react-container />',
       reloadOnSearch: false,