Patch to remove build_parse_node

[Joseph S. Myers]

On Mon, 29 Jan 2001, Jeffrey A Law wrote:

> Note, if we're still trying to document changes in the front-end interface,
> we should note that build_parse_node is gone.

As I see it, this is essentially fallout from the obstack -> gc move
(which made this function the same as build_nt), and nothing about that
move is documented in LANGUAGES.

-- 
Joseph S. Myers
jsm28@cam.ac.uk