undo CL 19010044 / dbcd720e5396

bradfitz reports:
> It breaks go-mode on GNU Emacs 22.1.1 as ships with OS X 10.8.6.

??? original CL description
misc/emacs: various cleanups

- Use #' for function symbols
- Remove unused variables
- Use declare-function to shut up byte compiler

R=adonovan
CC=golang-dev
https://codereview.appspot.com/19010044

Committer: Alan Donovan <adonovan@google.com>
???

R=bradfitz
CC=golang-dev
https://codereview.appspot.com/19640043