netifd: empty hotplug handler removed

SVN-Revision: 34465

package/network/config/netifd/files/etc/hotplug.d/iface/10-sysctl

-# Skip fake devices (e.g. relayd)
-grep -qs "^ *$DEVICE:" /proc/net/dev || exit 0
-
-case "$ACTION" in
-	ifup)
-		include /lib/network
-		scan_interfaces
-	;;
-esac
-