Temporarily stop generating lib_licenses.txt automatically

Something is busted with pip-licenses in CI. Not sure why, but
it's only needed for Windows builds anyway.

.github/workflows/bundle_windows.yml

@@ -36,8 +36,6 @@ jobs:
     - name: Bundle with cx_Freeze
       run: |
         python setup_cxfreeze.py build_exe
-        pip install pip-licenses
-        pip-licenses --format=plain-vertical --with-license-file --no-license-path --output-file=lib_licenses.txt
         python setup_cxfreeze.py finalize_cxfreeze
 
     - name: Upload the artifact