established floating ip connection won't get disconnected after disassociating floating ip

[stanzgy]

Established connections via floating ip won't get disconnected after we disassociating that floating ip.

As mentioned in maillist by Vish, we should move clean_conntrack() from migration code to remove_floating_ip.
https://github.com/openstack/nova/blob/master/nova/network/floating_ips.py#L575

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/103023
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=7028f074202a59111f461b9fa935f44b6d118f41
Submitter: Jenkins
Branch: master

commit 7028f074202a59111f461b9fa935f44b6d118f41
Author: stanzgy <email address hidden>
Date: Fri Jun 27 13:38:09 2014 +0800

    Clean conntrack records when removing floating ip

    Established connections via floating ip won't get disconnected after
    disassociating.
    This patch move clean_conntrack from migration code to remove_floating_ip to
    make sure that established connections on floating ip will get interrupted
    immediately after disassociating.

    Change-Id: I88d258ea39ea7c76e4cc60a636eb1e3e6aaa6f22
    Closes-Bug: #1334938