Updated openstack/openstack
Project: openstack/oslo.messaging  bcb3b23b8f6e7d01e38fdc031982558711bb7586

Don't use oslo.cfg to set kombu in-memory driver

This removes a TODO and also fixes a issue due to the
global state of oslo.config.cfg.CONF.

Closes bug: #1397339

Change-Id: Ib366f35678f899fda93821e6f07897baf8f631b4