refactor: add types (#9606)

relates to #9100

modules/@angular/platform-browser/src/worker_render.ts

@@ -115,7 +115,7 @@ function initializeGenericWorkerRenderer(injector: Injector) {
 
   // initialize message services after the bus has been created
   let services = injector.get(WORKER_UI_STARTABLE_MESSAGING_SERVICE);
-  zone.runGuarded(() => { services.forEach((svc: any /** TODO #9100 */) => { svc.start(); }); });
+  zone.runGuarded(() => { services.forEach((svc: any) => { svc.start(); }); });
 }
 
 function messageBusFactory(instance: WebWorkerInstance): MessageBus {