CI: clean up unused steps

Author: mrakitin

.github/workflows/pypi_publish.yml

@@ -78,11 +78,6 @@ jobs:
       #     set -vxeuo pipefail
       #     conda install -y -c conda-forge mpi4py openmpi
 
-      - name: Copy over README.md
-        run: |
-          set -vxeuo pipefail
-          cp README.md env/python
-
       - name: Install cibuildwheel on Linux
         if: runner.os == 'Linux'
         run: |
@@ -113,17 +108,6 @@ jobs:
           mkdir -p ../../dist
           cp dist/*.whl ../../dist/
 
-      # - name: Build sdist on Windows (for Python 3.11)
-      #   if: runner.os == 'Windows' && matrix.python-version == '3.11'
-      #   run: |
-      #     set -vxeuo pipefail
-      #     cd env/python
-      #     python -VV
-      #     python setup.py sdist
-      #     ls -la dist/*
-      #     mkdir -p ../../dist
-      #     cp dist/*.tar.gz ../../dist/
-
       - name: Publish wheels to GitHub artifacts
         uses: actions/upload-artifact@v3
         with: