Revert "[JVM] Restore old implementation of 'lazy gather'"
Revert "[JVM] Restore old implementation of 'lazy gather'"

This reverts commit 131d253a20e9cc50daca6ff084a67ace3d4d89d6.

No special case for the JVM backend needed anymore.

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