Remove an unnecessary _wait_for_udev call
Remove an unnecessary _wait_for_udev call

We can unplug the devices without having to be sure that udev has
registered all Stratis information.

Signed-off-by: mulhern <7b51bcf507bcd7afb72bf8663752c0ddbeb517f6@redhat.com>

stratis-storage/stratisd,stratis-storage/stratisd,stratis-storage/stratisd