doc: remove reference to AUTHORS file (#18)

PR-URL: nodejs#52960
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

Co-authored-by: Marco Ippolito <marcoippolito54@gmail.com>

doc/node.1

@@ -791,8 +791,3 @@ GitHub repository and issue tracker:
 IRC (general questions):
 .Sy "libera.chat #node.js"
 (unofficial)
-.
-.\"======================================================================
-.Sh AUTHORS
-Written and maintained by 1000+ contributors:
-.Sy https://github.com/nodejs/node/blob/HEAD/AUTHORS