Delete the simulator when we don't need it anymore

BUG=none
R=svenpanne@chromium.org, ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/180243010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00