The testing_e2e util does not belong in platform-browser and was never
intended to be a public API. Move it out of that whole tree.
BREAKING CHANGE:
The following API was never intended to be public and is removed:
```js
import {verifyNoBrowserErrors} from '@angular/platform-browser/testing_e2e';
```
Consider using Protractor's console plugin: https://github.com/angular/protractor-console-plugin
the previous demo app was broken and is missing an e2e test.
I fixed the app, but was not able to get protractor to properly test
this app. Julie and I are looking into that. For now I manually verified
that the app works and that the original issue was fixed.
Closes#9244
Jason Choi
Sammy Jelin
Julie Ralph
ScottSWu
Igor Minar