A dispute between two half-brothers over whether their father’s remains should be autopsied does not belong in federal court, an appeals court held Wednesday.In an unpublished order, the 7th U.S. Circuit Court of Appeals declined to revive the lawsuit Jeffrey R. Golin filed against his half-brother, James M. Golin, and Neptune Management Corp. Jeffrey is seeking an autopsy he believes could find evidence James authorized euthanasia for their father, Milton Golin.Neptune is a cremation provider that is holding Milton …