specifically:
- cmd/kubeadm/.import-restrictions
- we don't need to explicitly allow k8s.io repos (external or published)
- rm pkg/controller/.import-restrictions
- pkg/client/unversioned was removed in 59042
- pkg/kubectl/.import-restrictions
- pkg/printers is no longer used
- pkg/api was masking all of the pkg/apis prefixes
- rm staging/src/k8s.io/code-generator/cmd/lister-gen/.import-restrictions
- noop / empty file
- test/e2e/framework/.import-restrictions
- we don't need to explicitly allow k8s.io repos (external or published)
yaml has comments, so we can explain why we have certain rules or
certain prefixes
for those files that weren't already commented yaml, I converted them to
yaml and took a best guess at comments based on the PRs that introduced
or updated them