lib/dns: don't filter for up*

nix/lib/dns.nix

@@ -131,9 +131,7 @@ rec {
                 domain =
                   if ctx == "dn42"
                   then "${net}.zentralwerk.dn42"
-                  else if builtins.match "up.*" ctx != null
-                  then namedNets.${net}.domainName
-                  else throw "Invalid IPv6 context: ${ctx}";
+                  else namedNets.${net}.domainName;
               in
                 lib.recursiveUpdate result {
                   "${ipv6ToReverse hosts.${host}}" = "${host}.${domain}";
@@ -214,9 +212,7 @@ rec {
         ns =
           if ctx == "dn42"
           then internalNS
-          else if builtins.match "up.*" ctx != null
-          then publicNS
-          else throw "Invalid IPv6 context: ${ctx}";
+          else publicNS;
         records =
           map (reverse: {
             name = builtins.substring 0 ((128 - reverseZone6Size) / 2 - 1) reverse;