Remove monkeysphere options from security menu

It's currently not used or recommended

src/freedombone-sec

        14 $"Create a new Let's Encrypt certificate"
        15 $"Renew Let's Encrypt certificate"
        16 $"Delete a Let's Encrypt certificate"
-       17 $"Enable GPG based authentication (monkeysphere)"
-       18 $"Register a website with monkeysphere"
-       19 $"Allow ssh login with passwords"
-       20 $"Show firewall")
+       17 $"Allow ssh login with passwords"
+       18 $"Show firewall")
 
     # shellcheck disable=SC2068
-    selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Security Settings" --menu $"Choose an operation, or ESC to exit:" 24 76 24 "${W[@]}" 3>&2 2>&1 1>&3)
+    selection=$(dialog --backtitle $"Freedombone Administrator Control Panel" --title $"Security Settings" --menu $"Choose an operation, or ESC to exit:" 22 76 22 "${W[@]}" 3>&2 2>&1 1>&3)
 
     if [ ! "$selection" ]; then
         exit 0
             delete_letsencrypt
             ;;
         17)
-            enable_monkeysphere
-            ;;
-        18)
-            register_website
-            ;;
-        19)
             allow_ssh_passwords
             change_ssh_settings
             exit 0
             ;;
-        20)
+        18)
             show_firewall
             exit 0
             ;;