Revert "mod does not rely on a fixed register anymore, the arguments are passed via the stack."
Due to buildbot failures.

BUG=
R=danno@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22474007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16110 ce2b1a6d-e550-0410-aec6-3dcde31c8c00