Updated openstack/openstack
Project: openstack/python-novaclient  2d6047ffb4b9ffc9fe843d3f273b6214e48e2970

no way to delete valid/invalid security rule

Previously deleting valid/invalid security
group rules was throwing the error of
"AttributeError". With this fix, now both
types of security group rules can be deleted.

Change-Id: I253c2742efe69ee41976c88ca2775189bc5bde0d
Closes-Bug: #1163469