Comment 2 for bug 1701490

Reviewed: https://review.openstack.org/479213
Committed: https://git.openstack.org/cgit/openstack/instack-undercloud/commit/?id=898900f69f2376875d76d03499c9f26d18591aaf
Submitter: Jenkins
Branch: master

commit 898900f69f2376875d76d03499c9f26d18591aaf
Author: Athlan-Guyot Sofer <email address hidden>
Date: Fri Jun 30 11:04:30 2017 +0200

    Remove nova cell leftover of undercloud upgrade from N->O.

    This special case handling shouldn't be needed for O->P as the cell
    have been created during N->O upgrade.

    Closes-Bug: #1701490

    Change-Id: I20bfbd4575dd4cc350d2cba91d50089c27bbbc45