Remove unused nova.conf values
Remove unused nova.conf values

Remove nova.conf values that nova does not use anymore

Change-Id: Ic973e4799a88b431ee750fe828bef53a4c1fe79d

rdo-management/tripleo-image-elements,qwefi/tripleo-image-elements,rdo-management/tripleo-image-elements,agroup/tripleo-puppet-elements,agroup/tripleo-puppet-elements,agroup/tripleo-puppet-elements,qwefi/tripleo-image-elements,agroup/tripleo-puppet-elements,openstack/tripleo-image-elements,openstack/tripleo-image-elements,qwefi/tripleo-image-elements,radez/tripleo-image-elements,radez/tripleo-image-elements,qwefi/tripleo-image-elements,qwefi/tripleo-image-elements