Remove double definition of config_settings key in keystone
Remove double definition of config_settings key in keystone

Change-Id: I291bfb1e5736864ea504cd82eea1d4001fcdd931

openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/opnfv-tht,openstack/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,dprince/tripleo-heat-templates