Comment 7 for bug 1869166

Reviewed: https://review.opendev.org/739963
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=9db0d36614c5abdb0ccb02ff6b300bc0d277f672
Submitter: Zuul
Branch: stable/train

commit 9db0d36614c5abdb0ccb02ff6b300bc0d277f672
Author: yatinkarel <email address hidden>
Date: Fri Jul 10 11:22:18 2020 +0530

    Revert "[train/backport] Prevent nftables to interfere with tripleo firewall"

    This reverts commit c3b24599d7055c4dead110d25d7479eca7a557fe.

    Revert "Do not fail if /usr/sbin/nft is not present"

    This reverts commit eedb679db95b281b2be0199d48876b8af64ea3a0.

    The nftables rules are not enabled now after [1] so reverting
    the original changes which are not needed.

    [1] https://git.centos.org/rpms/nftables/c/3730f48

    Related-Bug: #1870095
    Related-Bug: #1869166
    Closes-Bug: #1887112
    Change-Id: Ib3309cbbd6f2ca300ec205528402a3836a6f34df