A con artist who landed back in prison did not fare well this week before a federal appeals court that once described him as a “bad seed.”The 7th U.S. Circuit Court of Appeals held Steven Cross has no grounds to challenge a judge’s decision to revoke his supervised release and sentence him to two years in prison.Sufficient evidence supported a probation officer’s contention that Cross had violated the conditions of his release, a panel of the court wrote in an unpublished order.One condition, the …