Unlinking local folder from repository

I have a folder (with subfolders) that I had linked to the repo, thus a
working folder.

I want to keep the folders and the files that are in them, but I don't want
that folder to be linked to the repo anymore. I want to change it from a
working folder to just a normal folder.

I've searched the list and checked the FAQ, but can't find anywhere that
explains how to "unlink" a folder from a repo. I don't want to delete the
folder or the files.

Any help is appreciated.
Thanks,
~Brian

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