removed some information from example files for users to fill on their own

vars/tail_net.yml.example

@@ -5,15 +5,14 @@ tail:
       email: ""
       pfp: ~
   scheme: https
-  domain: sukaato.moe
+  domain: localhost
   port: ":8080"
   grpc:
     expose: false
     secure: true
     port: ":50443"
   magic_dns:
-    domain: "cyberia.net"
+    domain: ""
     nameservers:
-      - "https://dns.nextdns.io/5a5ac6"
       - 9.9.9.9