sysinit.target: Don't depend on systemd-tmpfiles-setup.service

systemd-tmpfiles-setup.service pulls in local-fs.target, which
interferes with NixOps' send-keys feature (since sshd.service depends
indirectly on sysinit.target). Since in NixOS we don't use
systemd-tmpfiles for creating files (that's done by activation scripts
and preStart scripts), it's not a problem to start it a bit later.

units/systemd-tmpfiles-setup.service.in

@@ -11,7 +11,7 @@ Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8)
 DefaultDependencies=no
 Conflicts=shutdown.target
 After=local-fs.target systemd-sysusers.service
-Before=sysinit.target shutdown.target
+Before=shutdown.target
 RefuseManualStop=yes
 
 [Service]

units/systemd-update-utmp.service.in

@@ -11,7 +11,7 @@ Documentation=man:systemd-update-utmp.service(8) man:utmp(5)
 DefaultDependencies=no
 RequiresMountsFor=/var/log/wtmp
 Conflicts=shutdown.target
-After=systemd-remount-fs.service systemd-tmpfiles-setup.service auditd.service
+After=systemd-remount-fs.service auditd.service
 Before=sysinit.target shutdown.target
 
 [Service]