Updated openstack/openstack
Project: openstack/python-novaclient  26246e74742cfc613fee06c6da338f33d13f9eb6

pass id to ServerGroupsManager in ServerGroup.delete()

ServerGroup object delete currently fails because the manager object
requires the server group id and is instead passed the server group
object itself (copy-paste error). This patch changes it to pass the
id.

Change-Id: Ic6a4a38157f52343fbb3e75a02d1f7c6bef28d99
Closes-Bug: #1400494