Updated openstack/openstack
Project: openstack/oslo.messaging  e57a15deb8540b9b1c27395176ff69b77c77606d
null
Remove eventlet related code in amqp driver

Because driver should rely on executor and not directly on eventlet,
delete eventlet related code. This also drop the old driver API.

This is the amqp part.

Change-Id: Ic6060058dafa4dabbc5e8c68bf231c818a7fec25