Automatic merge from submit-queue kubeadm: Remove some old comments **What this PR does / why we need it**: Removes old and outdated comments. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes # **Special notes for your reviewer**: **Release note**: ```release-note NONE ``` @dmmcquay