Comment 8 for bug 1562830

Reviewed: https://review.openstack.org/331675
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=0520389f200c7b14dd3f7844f23988abe407e93e
Submitter: Jenkins
Branch: stable/mitaka

commit 0520389f200c7b14dd3f7844f23988abe407e93e
Author: Cao ShuFeng <email address hidden>
Date: Tue Mar 29 12:04:33 2016 +0800

    remove extra quota commit of manage snapshot

    When manage an existing snapshot of a volume, cinder-api and cinder-vol
    both commit quota. This result in an extra commit.This change remove
    the extra commit in the cinder-api.

    Closes-bug: #1562830
    (cherry picked from commit 9809769707352e756575b02a4520248b18c8559b)

    Change-Id: Ic93ceebfcd9703549eb5f6b41e404a36ce24daae