Disable handle zapping on 3.27 branch

BUG=318206
R=jkummerow@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/350853002

git-svn-id: https://v8.googlecode.com/svn/branches/3.27@21962 ce2b1a6d-e550-0410-aec6-3dcde31c8c00