The respective code was removed in May 2015:
c5eb9573

R=jochen@chromium.org
BUG=v8:6474
NOTRY=true

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I21be194e16b0a10613d62bc38fa10faee082da41
Reviewed-on: https://chromium-review.googlesource.com/530685Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45837}