build: switch example e2e tests to bazel (#28402)

* No longer builds the example e2e tests using "tsc". The examples are now built with Bazel and can therefore be built with Ivy by using the `--define=compile=aot` switch.
* No longer runs the example e2e tests using the protractor CLI. example e2e tests are executed with the Bazel protractor rule and can therefore run incrementally.

NOTE: Unit tests found within the examples are still running within the legacy jobs.

PR Close #28402

packages/examples/core/ts/prod_mode/prod_mode_example.ts

@@ -13,8 +13,10 @@ import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
 import {MyComponent} from './my_component';
 
 enableProdMode();
-@NgModule({imports: [BrowserModule], bootstrap: [MyComponent]})
-class AppModule {
+
+@NgModule({imports: [BrowserModule], declarations: [MyComponent], bootstrap: [MyComponent]})
+export class AppModule {
 }
+
 platformBrowserDynamic().bootstrapModule(AppModule);
 // #enddocregion