test(@angular/ssr): remove unsupported duplicate slash url test case

Angular Router normalizes duplicate slashes, making the duplicate slash URL test case unsupported after recent updates in Angular.

(cherry picked from commit fa9146e)

Author: alan-agius4

packages/angular/ssr/test/app_spec.ts

@@ -441,7 +441,6 @@ describe('AngularServerApp', () => {
           'http://localhost/home?empty',
           'http://localhost/home?scope=email+profile',
           'http://localhost/home?bbb=1&aaa=2&bbb=3',
-          'http://localhost//home',
         ];
 
         for (const url of urls) {