remove setup.py step in upload package to pypi

Author: akaszynski

.github/workflows/ci.yml

@@ -34,7 +34,6 @@ jobs:
         if: startsWith(github.ref, 'refs/tags/')
         run: |
           pip install twine
-          python setup.py sdist
           twine upload --skip-existing dist/*.tar.gz
         env:
           TWINE_USERNAME: "__token__"