Write Test for Remove-HipchatUserFromRoom

[cofonseca]

The function Remove-HipchatUserFromRoom needs to be completed.

It also needs a Pester test to go along with it.

[mdavis332]

#10 Looks like you've got the function written. Perhaps just needs tests now?

[cofonseca]

Correct @mdavis332 . I updated the title to be more specific. Thanks for pointing that out.