Get rid of distutils

[ana]

We have started getting the deprecation warning for distutils:

setup.py:21: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives

  from distutils.command.clean import clean

distutils is only used by the clean command. We need to re-implement it, some ideas at https://github.com/pypa/setuptools/issues/1347