nixbld: disable jitsi

Jitsi is bloated and overly complex, and the NixOS package is too limited.
https://discourse.nixos.org/t/setting-up-authentication-on-a-jitsi-server/17549

nixbld-etc-nixos/configuration.nix

@@ -748,10 +748,6 @@ in
           include /var/www/flarum/.nginx.conf;
         '';
       };
-      "call.m-labs.hk" = {
-        forceSSL = true;
-        enableACME = true;
-      };
       "perso.m-labs.hk" = {
         addSSL = true;
         enableACME = true;
@@ -825,12 +821,6 @@ in
     };
   };
 
-  services.jitsi-meet = {
-    enable = true;
-    hostName = "call.m-labs.hk";
-  };
-  services.jitsi-videobridge.openFirewall = true;
-
   services.rt = {
     enable = true;
     package = pkgs.rt.overrideAttrs(oa: {

nixbld-etc-nixos/named/m-labs.hk

@@ -1,7 +1,7 @@
 $TTL 7200
 
 @						SOA	42-200-147-171.static.imsbiz.com. sb.m-labs.hk. (
-							2022063004
+							2022072501
 							7200
 							3600
 							86400
@@ -22,7 +22,6 @@ mail					CNAME	@
 lab						CNAME	@
 www						CNAME	@
 nixbld					CNAME	@
-call					CNAME	@
 conda					CNAME	@
 git						CNAME	@
 chat					CNAME	@