Revert "python311Packages.pyuavcan: add deprecation warning"

This reverts commit 7b13a350aa11dac70b962db34e3ddd2e110d2e6a.

ofborg-eval is now failing on every PR with:

nix-env did not evaluate cleanly:
["trace: warning: pyuavcan is deprecated and will be removed in 24.05; use pycyphal instead",...]

Since CI is also failing in the original PR, let's revert for now.

pkgs/development/python-modules/pyuavcan/default.nix

···
 { lib, buildPythonPackage, fetchFromGitHub, pythonOlder, numpy, nunavut
 , pyserial , pytest, ruamel-yaml}:
 
-# This has been renamed pycyphal, without any API changes; though this package is
-# quite outdated so transition might not be as seemless as it could be
-# See https://uavcan.org/ (which will redirect to https://opencyphal.org/)
-lib.warn "pyuavcan is deprecated and will be removed in 24.05; use pycyphal instead"
  buildPythonPackage rec {
   pname = "pyuavcan";
   version = "1.1.0.dev1";