Merge pull request #703 from htm-community/pip_4

CI: PYPI upload have only *.whl in dist/

.github/workflows/htmcore.yml

@@ -134,6 +134,7 @@ jobs:
  cd dist
  mv `ls -1 htm*-linux_*.whl` `ls -1 htm*-linux_*.whl | sed -e's/linux/manylinux1/'` #rename to manylinux1 to make PYPI accept the package
  rm *.egg #remove obsoleted egg format
+ rm requirements.txt # PIPY upload has problem with non-*.whl files 
  cd ..
  ls dist/