Revert "Skip the CallFunctionStub when the callee function can be statically determined."

This reverts commit 9845dfadd2ad4a83fa00bf43e0c2791ccf7eacad (r25042) for failing tests.

TBR=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/693103004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25044 ce2b1a6d-e550-0410-aec6-3dcde31c8c00