I am not sure how you would do that.
The Abyss link is weird. There is no cord/nothing tangible that any (most) of us can see. Nothing to slice or dice or disconnect. It is a very weird link–maybe not even a link.
Remember normally astral cords/links go between two objects.
What ever binds demons to the Abyss binds them to an entire Infinite Plane that happens to fall outside the normal structure of the multiverse.