removing some dead code around createURLPrefix

I am pretty sure this is not being used anymore. I tried to find some use for it, but couldn't.

Thoughts?

My goal here is to simplyfy the code around urls and publishing, so future changes I am making in publishing is much safer. It feels a bit hairy right now. If I can trim the createURLPrefix usage a bit, I can make safe simple changes to it. (and understand it better)