Enable the remove-email test, it is stable.

@jrgm or @6a68, mind reviewing?

The remove-email test seems perfectly capable now that the rest of the tests are passing.

```
➜  automation-tests git:(remove-email-test) ✗ ./scripts/run-all.js -t remove-email -e insensitive -p 8 -i 15
ignoring public-terminals.js
adding remove-email.js
Running 15 suite(s) on 1 platform(s), 8 at a time against https://insensitive.personatest.org
>>>>>>>>..................................................................................................................<>......<>.<>.<>.<>........<>.<>.<..................................................................................................<.<.<.<..<...<.<

255/255 tests passed
➜  automation-tests git:(remove-email-test) ✗ 
```