Don't install legacy initscripts at same time as systemd ones

The Fedora policies don't want us installing the legacy initscripts
in parallel with the systemd ones, so switch to only install the
systemd unit
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
(cherry picked from commit 49e5abb6)

libvirt.spec.in

@@ -769,9 +769,7 @@ of recent versions of Linux (and other OSes).
 %define with_packager_version --with-packager-version="%{release}"
 
 %if %{with_systemd}
-# We use 'systemd+redhat', so if someone installs upstart or
-# legacy init scripts, they can still start libvirtd, etc
-%define init_scripts --with-init_script=systemd+redhat
+%define init_scripts --with-init_script=systemd
 %else
 %define init_scripts --with-init_script=redhat
 %endif