Revert "Fix missing x87 tracking for deferred code."

Mac builder has some problems compiling.

BUG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/23496020

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16434 ce2b1a6d-e550-0410-aec6-3dcde31c8c00