[JVM] Remove superfluous call to .shift
[JVM] Remove superfluous call to .shift

Leftover from https://github.com/rakudo/rakudo/commit/4ef28a7bcb

softmoth/rakudo,rakudo/rakudo,lucasbuchala/rakudo,softmoth/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,nbrown/rakudo,tbrowder/rakudo,rakudo/rakudo,rakudo/rakudo,nbrown/rakudo,salortiz/rakudo,Gnouc/rakudo,nbrown/rakudo,rakudo/rakudo,MasterDuke17/rakudo,nbrown/rakudo,rakudo/rakudo,nbrown/rakudo,lucasbuchala/rakudo,salortiz/rakudo,lucasbuchala/rakudo,salortiz/rakudo,tbrowder/rakudo,softmoth/rakudo,tony-o/rakudo,salortiz/rakudo,tony-o/rakudo,Gnouc/rakudo,softmoth/rakudo,softmoth/rakudo,salortiz/rakudo,MasterDuke17/rakudo,labster/rakudo,MasterDuke17/rakudo,salortiz/rakudo,Gnouc/rakudo,tbrowder/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,tony-o/rakudo,labster/rakudo,rakudo/rakudo,Gnouc/rakudo,tony-o/rakudo,MasterDuke17/rakudo,labster/rakudo,tbrowder/rakudo,labster/rakudo,lucasbuchala/rakudo,tony-o/rakudo,labster/rakudo,Gnouc/rakudo,MasterDuke17/rakudo,labster/rakudo,tony-o/rakudo,nbrown/rakudo