[Samba] Remove all Windows ACL's from files/folders

[Greg Sloop <gregs@sloop.net>]

What's the proper way to REMOVE all the ACL's assigned by Windows to a
Samba share/folders/files?

The short story is I was having problems assigning ACL's via the Windows
security dialog. I managed to fix that, but now users that I assign rights
to a file/folder simply don't have those rights, and I can't figure out why.

I want to make absolutely sure that all the previous ACL's are gone so I'm
sure I'm working with a clean setup. If I still have issues, then at least
I'm starting from a clean base, so working through the troubleshooting
steps might be easier.

TIA
-Greg