In diffusion, how do I remove a repository URI that has an observer?

I disabled the URI, and renamed to be an invalid host, but it still attempts to set it as an observer. How do I remove this URI? it’s causing an error to be thrown.

COMMAND
git ls-remote '********'

STDOUT
(empty)

STDERR
fatal: unable to access 'http://asdf/': Couldn't resolve host 'asdf'```