Remove cjdns from the interactive installer, since it's not yet useful

src/freedombone-config

   ROUTER_IP_ADDRESS=$(cat $data | sed -n 2p)
   save_configuration_file
 
-  data=$(tempfile 2>/dev/null)
-  trap "rm -f $data" 0 1 2 5 15
-  if [[ $(grep 'ENABLE_CJDNS' temp.cfg | awk -F '=' '{print $2}') == "yes" ]]; then
-      dialog --title "Mesh Networking" \
-          --backtitle "Freedombone Configuration" \
-          --yesno "\nDo you want to enable CJDNS?" 7 60
-  else
-      dialog --title "Mesh Networking" \
-          --backtitle "Freedombone Configuration" \
-          --defaultno \
-          --yesno "\nDo you want to enable CJDNS?" 7 60
-  fi
-  sel=$?
-  case $sel in
-      0) ENABLE_CJDNS="yes";;
-      1) ENABLE_CJDNS="no";;
-      255) exit 0;;
-  esac
-  save_configuration_file
-
   if [[ $SYSTEM_TYPE == "$VARIANT_WRITER" || $SYSTEM_TYPE == "$VARIANT_FULL" ]]; then
       while [ ! $WIKI_DOMAIN_NAME ]
       do