python3Packages.cut-cross-entropy: remove restriction on Python 3.13

Python 3.13 support requires PyTorch 2.6, which
has been merged into master after this package
has been merged, in https://github.com/NixOS/nixpkgs/pull/377785.

This restriction is no longer required.

pkgs/development/python-modules/cut-cross-entropy/default.nix

@@ -18,7 +18,6 @@
   huggingface-hub,
   pandas,
   pytestCheckHook,
-  pythonAtLeast,
   tqdm,
   transformers,
 }:
@@ -37,10 +36,6 @@ buildPythonPackage {
     hash = "sha256-BVPon+T7chkpozX/IZU3KZMw1zRzlYVvF/22JWKjT2Y=";
   };
 
-  # Python 3.13 support requires PyTorch 2.6, which is not merged into master yet
-  # https://github.com/NixOS/nixpkgs/pull/377785
-  disabled = pythonAtLeast "3.13";
-
   build-system = [
     setuptools
     setuptools-scm