ehlo,
debian has pach which removes syslog.target from service.file
http://anonscm.debian.org/cgit/pkg-sssd/sssd.git/tree/debian/patches/fix-...
and this target is not available on el7.1with quite old systemd.
I had a small discussion with systemd guys and we can drop
it without any problem. It should work out-of-the-box.
LS