Remove Fedora 23 from nodepool
Remove Fedora 23 from nodepool

Remove Fedora 23 from nodepool config

Change-Id: I607f0085aeec2cb6f9c57c7152a58d3c9ce091d9

openstack-infra/project-config,Tesora/tesora-project-config,Tesora/tesora-project-config,openstack-infra/project-config