How do you delete a user-set DNS record?

I figured out how to clear a DNS record value that I set, but how would I delete it?

That’s the same thing?

Ok I see what I did wrong. I was looking at to see how the API worked and saw where it said

if value == '':
	# request deletion:

So I typed:

curl -k -d "value=''" --user

This just blanked out the record value instead of deleting the record itself
( CNAME '').

I suppose I should have typed instead:

curl -k -d "value=" --user