treewide: remove remaining nginxQuic mentions

nixos/modules/services/web-servers/nginx/vhost-options.nix

@@ -243,9 +243,7 @@ with lib;
       default = true;
       description = ''
         Whether to enable the HTTP/3 protocol.
-        This requires using `pkgs.nginxQuic` package
-        which can be achieved by setting `services.nginx.package = pkgs.nginxQuic;`
-        and activate the QUIC transport protocol
+        This requires activating the QUIC transport protocol
         `services.nginx.virtualHosts.<name>.quic = true;`.
         Note that HTTP/3 support is experimental and *not* yet recommended for production.
         Read more at <https://quic.nginx.org/>
@@ -258,9 +256,7 @@ with lib;
       default = false;
       description = ''
         Whether to enable the HTTP/0.9 protocol negotiation used in QUIC interoperability tests.
-        This requires using `pkgs.nginxQuic` package
-        which can be achieved by setting `services.nginx.package = pkgs.nginxQuic;`
-        and activate the QUIC transport protocol
+        This requires activating the QUIC transport protocol
         `services.nginx.virtualHosts.<name>.quic = true;`.
         Note that special application protocol support is experimental and *not* yet recommended for production.
         Read more at <https://quic.nginx.org/>
@@ -272,8 +268,6 @@ with lib;
       default = false;
       description = ''
         Whether to enable the QUIC transport protocol.
-        This requires using `pkgs.nginxQuic` package
-        which can be achieved by setting `services.nginx.package = pkgs.nginxQuic;`.
         Note that QUIC support is experimental and
         *not* yet recommended for production.
         Read more at <https://quic.nginx.org/>

nixos/tests/sing-box.nix

@@ -139,7 +139,6 @@ in
 
         services.nginx = {
           enable = true;
-          package = pkgs.nginxQuic;
 
           virtualHosts."${target_host}" = {
             onlySSL = true;