Comment 6 for bug 1712380

Reviewed: https://review.openstack.org/496303
Committed: https://git.openstack.org/cgit/openstack/instack-undercloud/commit/?id=808c89b9247b0570f32a67b88d102790445ebee5
Submitter: Jenkins
Branch: stable/newton

commit 808c89b9247b0570f32a67b88d102790445ebee5
Author: James Slagle <email address hidden>
Date: Fri Aug 4 13:28:17 2017 -0400

    Remove isolated-build element

    The element is no longer used in the undercloud install as it's not
    contained in any of the json files under json-files or included by any
    element dependencies.

    This is a fix for the security issue where the /tmp path is used.

    Change-Id: Ib8013fa33cd14d7e4a66e07bd6f3a280c41a7f15
    Closes-Bug: #1712380
    (cherry picked from commit 722d9e4292f2013c4c13ce391778b902c88d83f1)