Comment 5 for bug 1630556

Reviewed: https://review.openstack.org/382371
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=e792e5111c2cb58c1b876e679dff43f92ca344b7
Submitter: Jenkins
Branch: stable/mitaka

commit e792e5111c2cb58c1b876e679dff43f92ca344b7
Author: Vladimir Kuklin <email address hidden>
Date: Wed Oct 5 15:17:08 2016 +0300

    Remove redundant role based graph cycle checker

    This commit removes redundant premature graph cycle checker as
    triggers a false-positive exception during conversion or role-based
    graph into task-based as it should be firstly preprocessed with sorting
    things into several stages, e.g. pre-/post- and deployment stage itself
    later. At the same time we have cycle checker in Astute which also does
    some graph pre-processing and does not trigger on cycles between
    'virtual tasks such as groups

    Change-Id: If6a23ca2b924bac308c19d374044de039e370b46
    Closes-bug: #1630556