A Milwaukee city employee did not trample on the U.S. Constitution when he inspected the outside of a vacant house from walkways on the property, a federal appeals court has held.In an unpublished order this week, the 7th U.S. Circuit Court of Appeals declined to revive a lawsuit accusing a code enforcement inspector of violating the Fourth Amendment by examining the house’s exterior without first obtaining a warrant.A three-judge panel of the court conceded that the curtilage of a home has some constitutional …