Remove use of deprecated undefine()
Remove use of deprecated undefine()

MasterDuke17/rakudo,tony-o/rakudo,tony-o/rakudo,salortiz/rakudo,salortiz/rakudo,labster/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,rakudo/rakudo,tony-o/rakudo,rakudo/rakudo,salortiz/rakudo,MasterDuke17/rakudo,rakudo/rakudo,tony-o/rakudo,labster/rakudo,labster/rakudo,tbrowder/rakudo,labster/rakudo,tbrowder/rakudo,rakudo/rakudo,tbrowder/rakudo,salortiz/rakudo,tony-o/rakudo,MasterDuke17/rakudo,rakudo/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,labster/rakudo,salortiz/rakudo,tony-o/rakudo,rakudo/rakudo,salortiz/rakudo,labster/rakudo,MasterDuke17/rakudo,tbrowder/rakudo