Disable handle zapping on 3.28 branch

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

Review URL: https://codereview.chromium.org/480043002

git-svn-id: https://v8.googlecode.com/svn/branches/3.28@23153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00