udev: remove implicit dependency on initscripts

At some point, the udev was modified to source the functions from
initscripts or lsbinitscripts. This dependency is actually not needed.
If we use udev in a system where initscripts from oe-core is not available,
there will be errors.

This patch fixes this problem by removing the implicit dependency.

[YOCTO #4882]
[YOCTO #4103]

(From OE-Core rev: 72d6825c24f4c3e4a7a907cf0a09e2e8f7720ae8)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/udev/udev/init

@@ -9,8 +9,6 @@
 # Short-Description: Start udevd, populate /dev and load drivers.
 ### END INIT INFO
 
-. /etc/init.d/functions
-
 export TZ=/etc/localtime
 
 [ -d /sys/class ] || exit 1
@@ -31,6 +29,11 @@ readfiles () {
    done
 }
 
+kill_udevd () {
+    pid=`pidof -x udevd`
+    [ -n "$pid" ] && kill $pid
+}
+
 case "$1" in
   start)
     export ACTION=add
@@ -89,7 +92,7 @@ case "$1" in
     fi
 
     # make_extra_nodes
-    killproc udevd > "/dev/null" 2>&1
+    kill_udevd > "/dev/null" 2>&1
 
     # trigger the sorted events
     echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
@@ -114,7 +117,12 @@ case "$1" in
     $0 start
     ;;
   status)
-    status udevd
+    pid=`pidof -x udevd`
+    if [ -n "$pid" ]; then
+	echo "udevd (pid $pid) is running ..."
+    else
+	echo "udevd is stopped"
+    fi
     ;;
   *)
     echo "Usage: $0 {start|stop|status|restart}"