Share alias bug fix

*THIS NEEDS A REVIEW*

So, I was trying to understand what [this code](https://github.com/rdlowrey/Auryn/blob/master/lib/Auryn/Provider.php#L269-L271) does exactly.

It turns out I couldn't understand it, but could see a test case that wasn't covered. I added the test case and it didn't pass. 

Deleting those lines of code, made all of the tests pass. So....that's good?