Remove etc/GNUS-NEWS (bug#34662)

It is not relevant since Gnus stopped being distributed separately.
* etc/GNUS-NEWS: Remove this generated file.
* etc/NEWS.26: Relocate an entry mistakenly added to GNUS-NEWS.
* doc/misc/gnus-coding.texi (Gnus Maintenance Guide):
No longer mention GNUS-NEWS.
* doc/misc/gnus-news.el: Remove.
* doc/misc/gnus-news.texi: Update a comment.
* lisp/Makefile.in (update-gnus-news): Remove this phony target.

1 files changed, 0 insertions, 8 deletions

diff --git a/doc/misc/gnus-coding.texi b/doc/misc/gnus-coding.texi
index 95544628f79..f3e96a0cb63 100644
--- a/doc/misc/gnus-coding.texi
+++ b/doc/misc/gnus-coding.texi
@@ -362,14 +362,6 @@ such multiple commits, like whitespace differences, and unify those ;-).
 
 @section Miscellanea
 
-@heading @file{GNUS-NEWS}
-
-The @file{etc/GNUS-NEWS} is created from
-@file{doc/misc/gnus-news.texi}.  Don't edit @file{etc/GNUS-NEWS}.
-Edit @file{doc/misc/gnus-news.texi}, type @command{make
-update-gnus-news} in the @file{lisp} directory and commit
-@file{etc/GNUS-NEWS} and @file{doc/misc/gnus-news.texi}.
-
 @heading Conventions for version information in defcustoms
 
 For new customizable variables introduced in Oort Gnus (including the