plugins: remove unnecessary use of convertLegacyRouteRef(s)

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/notifications/src/alpha.tsx

@@ -22,16 +22,12 @@ import {
   fetchApiRef,
 } from '@backstage/frontend-plugin-api';
 import { rootRouteRef } from './routes';
-import {
-  convertLegacyRouteRef,
-  convertLegacyRouteRefs,
-} from '@backstage/core-compat-api';
 import { NotificationsClient, notificationsApiRef } from './api';
 
 const page = PageBlueprint.make({
   params: {
     path: '/notifications',
-    routeRef: convertLegacyRouteRef(rootRouteRef),
+    routeRef: rootRouteRef,
     loader: () =>
       import('./components/NotificationsPage').then(m => (
         <m.NotificationsPage />
@@ -53,9 +49,9 @@ const api = ApiBlueprint.make({
 export default createFrontendPlugin({
   pluginId: 'notifications',
   info: { packageJson: () => import('../package.json') },
-  routes: convertLegacyRouteRefs({
+  routes: {
     root: rootRouteRef,
-  }),
+  },
   // TODO(Rugvip): Nav item (i.e. NotificationsSidebarItem) currently needs to be installed manually
   extensions: [page, api],
 });