Bug#933318: python-os-cloud-config (build-)depends on cruft packages.

[Peter Michael Green]

Package: python-os-cloud-config
Severity: serious
Tags: bullseye, sid
python-os-cloud-config depends on a number of binary packages that are 
no longer built by their corresponding source packages, including

python-glanceclient
python-ironicclient
python-keystoneclient
python-neutronclient
python-novaclient
python-oslo.config
python-oslo.i18n
python-pbr

Presumablly this package needs to migrate to python3 if it is going to 
stay around at all.