I don't think a court can be abolished unless a sitting judge retires because the Constitution says that judicial salaries cannot be decreased.
There has been a few abolished US federal courts. A 1 minute look around the net shows:
- 1802 U.S. district court for the District of Potomac
- 1862 Congress abolished the California circuit court
- 1863 Congress abolished the circuit and district courts for the District of Columbia
- Commerce Court (1910) abolished in 1913
I doubt all the judges retired, but they may have moved on to other courts.