Omit edition numbers and dates in manuals

These seem to cause more confusion than they cure; e.g.,
https://shop.fsf.org/books/gnu-emacs-manual-18th-edition-v-261
currently advertises "18th edition" even as it points to
https://www.gnu.org/software/emacs/manual/pdf/emacs.pdf
which says "Seventeenth Edition".  It is simpler and less
confusing to stick to one version number like "26.3".  If we
need a separate edition number for each printed manual for
some reason (marketing?) we can put “@ifset printed-edition”
around anything specific to the printed editions.
(as opposed to online PDF copies).
* doc/emacs/emacs.texi (EDITION):
* doc/lispintro/emacs-lisp-intro.texi (edition-number, update-date):
* doc/lispref/elisp.texi (VERSION, DATE):
Remove, and remove uses.

1 files changed, 1 insertions, 12 deletions

diff --git a/doc/lispref/elisp.texi b/doc/lispref/elisp.texi
index d667c51d788..652175c3952 100644
--- a/doc/lispref/elisp.texi
+++ b/doc/lispref/elisp.texi
@@ -52,12 +52,7 @@
 @end ifset
 @end tex
 
-
-@c Version of the manual and of Emacs.
-@c (See comments for EDITION in emacs.texi)
-@set VERSION  3.1
 @include emacsver.texi
-@set DATE October 2014
 
 @c in general, keep the following line commented out, unless doing a
 @c copy of this manual that will be published.  The manual should go
@@ -91,12 +86,7 @@
 @c @syncodeindex tp fn
 
 @copying
-@iftex
-This is edition @value{VERSION} of the @cite{GNU Emacs Lisp Reference Manual},@*
-@end iftex
-@ifnottex
-This is the @cite{GNU Emacs Lisp Reference Manual}
-@end ifnottex
+This is the @cite{GNU Emacs Lisp Reference Manual},
 corresponding to Emacs version @value{EMACSVER}.
 
 Copyright @copyright{} 1990--1996, 1998--2019 Free Software Foundation, Inc.
@@ -127,7 +117,6 @@ developing GNU and promoting software freedom.''
 @subtitle @value{voltitle}
 @end ifset
 @subtitle For Emacs Version @value{EMACSVER}
-@subtitle Revision @value{VERSION}, @value{DATE}
 
 @author by Bil Lewis, Dan LaLiberte, Richard Stallman,
 @author the GNU Manual Group, et al.