Following commands were deprecated one year ago, now we remove them
from the tree:
* openstack baremetal create
* openstack baremetal delete
* openstack baremetal list
* openstack baremetal show
* openstack baremetal set
* openstack baremetal unset
Note that `openstack baremetal create` is used to create a single node
as well as create resources from file(s). Only the deprecated part
(create a single node) is removed in this patch.
Closes-Bug: #1715643
Change-Id: I0aed7cb970adf23db033c2a951026d649134caa9
64a8006d65