comment private functions
comment private functions

small refactor

Signed-off-by: Tyler Schultz <6b7a73f4f7cffc2a148becd12890940350ddfa95@vmware.com>
Co-authored-by: Aidan Obley <2667fa8e8663c9d9f622cbe0896041b5635a919f@vmware.com>

kubernetes/cloud-provider-vsphere,kubernetes/cloud-provider-vsphere