Revert "Classes: implement 'new super'."

This reverts commit r24822 for breaking debug compilation.

TBR=ishell@chromium.org

Review URL: https://codereview.chromium.org/662253003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00