Fedora 20 is not supported any more on master

Hi infra, Please disable the fedora 20 jobs [1] for vdsm master. This job is relevant only for ovirt-3.5 branch. Fedora 20 will be EOL at a about a month, and we require now libvirt version which is not available even on Fedora 20 virt-preview [2]. [1] http://jenkins.ovirt.org/job/vdsm_master_install-rpm-sanity-fc20_created/152... [2] https://gerrit.ovirt.org/40069 Thanks, Nir