Disable handle zapping on 3.24 branch in release mode

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

Review URL: https://codereview.chromium.org/177903002

git-svn-id: https://v8.googlecode.com/svn/branches/3.24@19531 ce2b1a6d-e550-0410-aec6-3dcde31c8c00