A private registry run from docker.io/registry:2 will use the Accept
content type added. This allows private repos to work:
WHEELS=192.168.1.50:5000/privateloci/requirements:ubuntu
Also remove the simple distutils function we used ahead of its removal
in python3.12
Change-Id: I7482e9097a7c0a5b332907c9e5849f2fe48af473