Updated openstack/openstack
Project: openstack/neutron  fb1a466f2022c2e62c8e9a5163e41399efe8485c

Removed kombu from requirements

Since we've replaced oslo-incubator RPC layer with oslo.messaging, we
don't ship any code that uses kombu.

Change-Id: Ia8a74f1326ecd98c47cbe447f04d475bf61e19d3