Comment 3 for bug 1267486

Security group do not deleted, according instance that use sec group failed to delete. As result Deletion of security group failed with error
BadRequest: 409-{u'NeutronError': {u'message': u'Security Group 25d7e92e-cb82-4307-a3c8-5aca3144cee8 in use.', u'type': u'SecurityGroupInUse', u'detail': u''}} (HTTP 400) (Request-ID: req-0e310564-77c0-4cc8-8d3e-3210da4317f8)