Cleanup use of iteritems
Cleanup use of iteritems

This code was confused since it checked if the object has an
iteritems and then used six.iteritems() instead. Since the code
has verified that there's an iteritems just call it.

Change-Id: I249b30aa00fd712d69a5e6e98127eee8f09063ba

idjaw/keystone,rajalokan/keystone,openstack/keystone,rajalokan/keystone,klmitch/keystone,openstack/keystone,himanshu-setia/keystone,mahak/keystone,dims/keystone,dstanek/keystone,mahak/keystone,ilay09/keystone,mahak/keystone,jonnary/keystone,roopali8/keystone,dstanek/keystone,ilay09/keystone,ajayaa/keystone,jamielennox/keystone,jamielennox/keystone,maestro-hybrid-cloud/keystone,roopali8/keystone,maestro-hybrid-cloud/keystone,dims/keystone,rajalokan/keystone,ajayaa/keystone,cernops/keystone,idjaw/keystone,openstack/keystone,himanshu-setia/keystone,klmitch/keystone,cernops/keystone,dstanek/keystone,jonnary/keystone,takeshineshiro/keystone,takeshineshiro/keystone,ilay09/keystone