Stop calling chcon to propagate selinux context to editor config files
    
    We were calling:
    
     chcon --reference=name tempname
    
    So that the files didn't change from system_u:object_r:system_conf_t:s0
    to unconfined_u:object_r:system_conf_t:s0, but talking to
    Zdenek Pytela (Fedora selinux maintainer), apparently that's expected
    and harmless, and the chcon is problematical when confining
    fedora-third-party in the gnome-initial-setup context, since it requires
    extra permissions.
    
    So drop the chcon usage.