Delete Project Parameters - how to list? - how to delete?

I’d like to delete a whole bunch of project parameters.

I’m not sure how our file ended up with so many of the same project parameter, but I need to bulk delete. Revit does not seem to allow bulk select and delete.

This is not my only file with this list… hence hoping Dyanmo can help.

How do I get a list of project parameters?
Then how do I delete them?