Remove reference to old init system

src/freedombone-image-customise

 echo $username:$password | chroot "$rootdir" /usr/sbin/chpasswd
 chroot "$rootdir" adduser $username sudo
 
-case "$MACHINE" in
-    qemu)
-        # hide irrelevant console keyboard messages.
-        echo "echo \"4 4 1 7\" > /proc/sys/kernel/printk" \
-             >> /etc/init.d/rc.local
-        ;;
-esac
-
 if [ ! $DEBIAN_REPO ]; then
     DEBIAN_REPO='ftp.de.debian.org'
 fi