Updated openstack/openstack
Project: openstack/keystone  7dc6ef2410de5bf71a0baa5549e66884a824b02c

Refactor FakeLdap to share delete code

FakeLdap is changed to implement delete_s using delete_ext_s.

Change-Id: Ibf63f6e13da830b57a9f7ea5b9689d52d7bdf690