Remove inaccurate mapping of 'host-meta' in csv
Remove inaccurate mapping of 'host-meta' in csv

Now we don't have a similar command to 'nova host-meta' in osc,
the 'host set/unset' in osc is used to manage host properties.
Need to remove the inaccurate mapping in nova.csv.

Change-Id: I291174a29c8e3419b62d47264dedf176262a816c
Closes-Bug: #1690902

dtroyer/python-openstackclient,openstack/python-openstackclient,dtroyer/python-openstackclient,openstack/python-openstackclient