remove default listen address

Author: jcgruenhage

defaults/main.yml

@@ -1,7 +1,7 @@
 ---
 # defaults file for yggdrasil
 yggdrasil_config_path: /etc/yggdrasil.conf
-yggdrasil_listen_address: "[::]:61216"
+yggdrasil_config_listen_address: "[::]:61216"
 yggdrasil_admin_listen_address: "unix:///var/run/yggdrasil.sock"
 yggdrasil_extra_peers: []
 yggdrasil_ansible_peers: []

templates/yggdrasil.conf.j2

@@ -1,11 +1,7 @@
 {
   # Listen address for peer connections. Default is to listen for all
   # TCP connections over IPv4 and IPv6 with a random port.
-  {% if yggdrasil_config_listen_address is defined %}
   Listen: "{{ yggdrasil_config_listen_address }}"
-  {% else %}
-  Listen: "{{ yggdrasil_listen_address }}"
-  {% endif %}
 
   # Listen address for admin connections. Default is to listen for local
   # connections either on TCP/9001 or a UNIX socket depending on your