Revert "Only bind certbot to machine-specific IP"

Incorrectly applied to MQTT class, was supposed to be done for cache servers.

This reverts commit b4261094a7.

global/overlay/etc/puppet/modules/cdn/manifests/mqtt.pp

@@ -50,7 +50,7 @@ class cdn::mqtt(
     content => file('cdn/mqtt/sunet-cdn-mqtt'),
   }
 
-  exec { "certbot certonly -n --email patlu@sunet.se --no-eff-email --agree-tos --standalone -d ${my_fqdn} --server ${acme_url[$environment]} --http-01-address ${facts['networking']['ip']}":
+  exec { "certbot certonly -n --email patlu@sunet.se --no-eff-email --agree-tos --standalone -d ${my_fqdn} --server ${acme_url[$environment]}":
     creates => "/etc/letsencrypt/live/${my_fqdn}/fullchain.pem"
   }
 }