This reverts commit
971a7a1526a6c1d5cb439a8a41dc65ccd4e3a66f.
These unit names are typically different on distributions, let's not
hardcode those. Stuff like this should probably live in the distro
RPM/.deb, but not upstream, where we should be distro agnostic and
agnostic to other higher level packages like this.
DefaultDependencies=no
After=systemd-remount-fs.service systemd-sysusers.service
Before=time-set.target sysinit.target shutdown.target
-Conflicts=chronyd.service ntpd.service
Conflicts=shutdown.target
Wants=time-set.target time-sync.target