nixos/nginx: don't disable IPC

This also disables the memfd_create syscall which is required for
certain regex's when using pcre2.

see https://github.com/NixOS/nixpkgs/pull/355989#issuecomment-2506841275

nixos/modules/services/web-servers/nginx/default.nix

@@ -1305,8 +1305,7 @@ in
         # System Call Filtering
         SystemCallArchitectures = "native";
         SystemCallFilter = [ "~@cpu-emulation @debug @keyring @mount @obsolete @privileged @setuid" ]
-          ++ optional cfg.enableQuicBPF [ "bpf" ]
-          ++ optionals ((cfg.package != pkgs.tengine) && (cfg.package != pkgs.openresty) && (!lib.any (mod: (mod.disableIPC or false)) cfg.package.modules)) [ "~@ipc" ];
+          ++ optional cfg.enableQuicBPF [ "bpf" ];
       };
     };
 

pkgs/servers/http/nginx/modules.nix

@@ -439,7 +439,6 @@ let self = {
     };
 
     inputs = [ curl geoip libmodsecurity libxml2 lmdb yajl ];
-    disableIPC = true;
 
     meta = with lib; {
       description = "Open source, cross platform web application firewall (WAF)";