Comment 21 for bug 1591976

Reviewed: https://review.opencontrail.org/22758
Committed: http://github.org/Juniper/contrail-neutron-plugin/commit/c4b16ec5a35ec8724311f1b44907f10d1a3265b5
Submitter: Zuul
Branch: master

commit c4b16ec5a35ec8724311f1b44907f10d1a3265b5
Author: Édouard Thuleau <email address hidden>
Date: Tue Aug 2 10:57:30 2016 +0200

Remove stale security group rules

When a security group is deleted all security group rules which
reference it as 'remote_group_id' should be deleted.
As the contrail data model does not permit to easy found that rules,
that fix propose to hide that stale rules only when they are listed or
read.

[1] https://github.com/openstack/tempest/search?utf8=%E2%9C%93&q=test_security_group_rules_delete_when_peer_group_deleted&type=Code

Change-Id: I219f4127785ab300302f2b7454321de83770a4a9
Closes-Bug: #1591976