2010-05-08 - Emacs 23.2 released
2009-07-29 - Emacs 23.1 released

I think we can now safely remove the following libraries, obsolete
since the above dates:
[23.2] * lisp/obsolete/ledit.el
[23.2] * lisp/obsolete/lmenu.el
[23.2] * lisp/obsolete/lucid.el
[23.1] * lisp/obsolete/old-whitespace.el

The libraries ledit.el, lmenu.el and lucid.el concern compatibility
with the long defunct Lucid Emacs, and old-whitespace.el is the old
version of whitespace.el.

Please see the attached patch.

Best regards,
Stefan Kangas

PS. There are also two libraries, fast-lock.el and lazy-lock.el
obsolete since Emacs 22, released in 2007.  Perhaps they should also
be removed.