Updated openstack/openstack
Project: openstack/neutron  2244f612c26059a907af180d3069e2dc52d7d2e8
null
Remove psutil dependency

The version of psutil that was being required is not hosted on
PyPi which caused some issues. This patch removes the psutil
dependency in favor of using the method that was proposed for
the havana backport of polling minimization.

Closes-bug: #1268711
Change-Id: I5a1672cfd195099d92578321153c42b8bfd09b7d