Remove TestPyPI step

Author: Kevin Paul

.github/workflows/release.yml

@@ -22,13 +22,6 @@ jobs:
         shell: bash -l {0}
         run: python setup.py sdist bdist_wheel
 
-      - name: Publish package to TestPyPI
-        uses: pypa/gh-action-pypi-publish@master
-        with:
-          user: __token__
-          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-          repository_url: https://test.pypi.org/legacy/
-
       - name: Publish package to PyPI
         if: github.repository == 'dask/dask-mpi' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
         uses: pypa/gh-action-pypi-publish@master