Remove unknown getBaseUrl call

Hello @dpup, @nicks, 

Please review the following commits I made in branch 'vinny-remove-base-url'.

I was trying to debug some failing tests with ``dump``, but it is broken:

```js
 TypeError: Object #<TestCase> has no method 'getBaseUrl'
<stack trace hidden>
```

It seems it was added recently and not defined anywhere so I just removed
the line.

4744ededabfd55f19f82d6b57125a95707704687 (2014-05-22 17:38:20 -0700)
Remove unknown getBaseUrl call

R=@dpup
R=@nicks