Remove dead code.
Remove dead code.

git-svn-id: 658c38985fefdbc77a3c39fad8c92881c9b5ce09@13465 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

hhugo/camlp4,eliberis/ocaml,yallop/camlp4,msprotz/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,chambart/camlp4,eliberis/ocaml,msprotz/ocaml,yunxing/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,yunxing/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,msprotz/ocaml,yunxing/ocaml,eliberis/ocaml,eliberis/ocaml