perf(dracut-systemd): drop ExecStart from oneshot shutdown service

Systemd oneshot services that set `RemainAfterExit=yes` do not need to
specify `ExecStart` in case they define `ExecStop`.

So remove the useless `/bin/true` start command from
`dracut-shutdown.service`.

diff --git a/modules.d/77dracut-systemd/dracut-shutdown.service b/modules.d/77dracut-systemd/dracut-shutdown.service
index b2b704a4d3c7273261da8fb8a69fcf705aa6269f..e071ca8116fd0b6fba4ecafbd241eee746560cb4 100644 (file)
--- a/modules.d/77dracut-systemd/dracut-shutdown.service
+++ b/modules.d/77dracut-systemd/dracut-shutdown.service
@@ -11,5 +11,4 @@ OnFailure=dracut-shutdown-onfailure.service
 [Service]
 RemainAfterExit=yes
 Type=oneshot
-ExecStart=/bin/true
 ExecStop=/usr/lib/dracut/dracut-initramfs-restore