Just stop answering the judge. Ignore him. And if the bothers Flynn again, sue him personally for harassment under color of law.
Flynn's lawyers should send a letter the Judge Flynn with the following statement: Pursuant to the pardon issued by President Trump the case against General Flynn is now moot. There will be no further responses to the the court.
My thought exactly! Just ignore him and walk away. Stop listening to his orders. What can he do? Flynn only has to tell anyone who comes after him he has a presidential pardon and any order is illegal.
Cops who know the law won’t touch him as they know it is wrongful incarceration and makes them personally and their department/agency liable for civil damages.
Then make a complaint to the Bar Association and a motion to the appeals court on judicial misconduct.
Flynn has to respond to the judge, at least once, but the next act the judge takes in regard Flynn, they should consider trying to get a direction or a restraining order from the appellate court.