chore(codex): use upstream 0.157.1 and drop the temporary patch (#327)

flake.lock

@@ -451,11 +451,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1790122280,
-        "narHash": "sha256-uWgg4A+hrlViz1L0y9D8zMkIjQU8UzJqoyxaZ3xY24Q=",
+        "lastModified": 1790416022,
+        "narHash": "sha256-DjGLaiqnHlHQ9d8EfKhklMlCRoEC97FkI9XRgznopL8=",
         "owner": "numtide",
         "repo": "llm-agents.nix",
-        "rev": "fcf80443a6e5363f30dc9b191bcb65cfcd788df2",
+        "rev": "03aa73a454d7468e0a3d44faee511fa6ae7c7ded",
         "type": "github"
       },
       "original": {
@@ -607,11 +607,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1790055231,
-        "narHash": "sha256-QpXotokGh5eeMG1Njiuh27oP0rK6t5+cMp7ymXSs7mc=",
+        "lastModified": 1790390834,
+        "narHash": "sha256-StRyS/lFHtIw/UgJk+xo+HA66mtoWeDUbkJdvf2Byn4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b6c98e9e6633ee64753b594ff4a5febf0367fc00",
+        "rev": "d54020a6ac3211e9f4201631bdf67678818c0cdf",
         "type": "github"
       },
       "original": {

outputs/default.nix

@@ -23,31 +23,6 @@ let
     // {
       inherit mylib myvars pkgs-stable;
 
-      # Temporary override until numtide/llm-agents.nix#9696 (codex 0.156.0) lands.
-      llm-agents = inputs.llm-agents // {
-        packages = lib.mapAttrs (
-          _system: packages:
-          packages
-          // {
-            codex =
-              (packages.codex.override {
-                version = "0.156.1";
-                hash = "sha256-H53f57hmnyCtn5yPxtBe/A92qyQyzQBeU/vK2qSBrvI=";
-                cargoVendor = {
-                  cargoHash = "sha256-W87rX/W2J1pwqNrihX+Rj6DfagoZYuB6C+l/S4BhyJM=";
-                };
-              }).overrideAttrs
-                (old: {
-                  # codex's codex-chatgpt crate exceeds rustc's default recursion
-                  # limit; the other crates already set this attribute.
-                  postPatch = (old.postPatch or "") + ''
-                    sed -i '1i #![recursion_limit = "256"]' chatgpt/src/lib.rs
-                  '';
-                });
-          }
-        ) inputs.llm-agents.packages;
-      };
-
       # use unstable branch for some packages to get the latest updates
       # pkgs-unstable = import inputs.nixpkgs-unstable {
       #   inherit system; # refer the `system` parameter form outer scope recursively