style: remove empty comments (#23404)

PR Close #23404

packages/platform-browser-dynamic/testing/src/testing.ts

@@ -16,9 +16,6 @@ import {platformCoreDynamicTesting} from './platform_core_dynamic_testing';
 
 export * from './private_export_testing';
 
-/**
- *
- */
 export const platformBrowserDynamicTesting = createPlatformFactory(
     platformCoreDynamicTesting, 'browserDynamicTesting',
     INTERNAL_BROWSER_DYNAMIC_PLATFORM_PROVIDERS);