Revert "initrdscripts: fix udevd in the live boot init scripts"

This cherry-pick slipped through testing and lead to unbootable hddimg images.

This reverts commit 0140519ba1.

[ YOCTO #3634 ]

(From OE-Core rev: 3fc5923b4c8e99fe22e10fb52181c951330a12f2)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initrdscripts/files/init-live.sh

@@ -14,14 +14,12 @@ early_setup() {
     mkdir -p /sys
     mount -t proc proc /proc
     mount -t sysfs sysfs /sys
-    mount -t devtmpfs none /dev
 
     # support modular kernel
     modprobe isofs 2> /dev/null
 
     mkdir -p /run
-    mkdir -p /var/run
-    /lib/udev/udevd --daemon
+    udevd --daemon
     udevadm trigger --action=add
 }