Comment 2 for bug 1301519

So this was changed late in icehouse cycle for a reason, and I'd like to make sure we don't change back and forth several times and have a final direction on this.

In the other bug, Russell criticized the idea of generating it in setup.py, saying:
"That's problematic because an accurate config depends on what versions of other libraries you have installed on the system, like oslo.config, oslo.messaging, keystoneclient ..."

I'd like to see that comment addressed...