Hi Russell,
You should be able to rename the Dropbox folders locally with a leading ‘~’ character. This will blacklist the folder and odrive will ignore it. It will see the original folder as “deleted” and it will end up in the odrive trash. When you unlink this link from your account, the listing in the trash will be removed and the renamed, blacklisted folder will remain as it was.
I would suggest trying this on a test link first, so you can observe the flow and make sure you have it correct before moving to your real links.