Make operating-system-release obsolete

* lisp/subr.el (operating-system-release): Make obsolete
(bug#39940).  There are no in-tree usages any more, and the data
doesn't seem all that interesting on its own.

diff --git a/lisp/subr.el b/lisp/subr.el
index 34129ea38a09a9c841399977afdbe6387b6a5400..a85f41d7d77d227c775cc6a804231da2410cceb6 100644 (file)
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1701,6 +1701,7 @@ be a list of the form returned by `event-start' and `event-end'."
 (make-obsolete-variable 'redisplay-dont-pause nil "24.5")
 (make-obsolete 'window-redisplay-end-trigger nil "23.1")
 (make-obsolete 'set-window-redisplay-end-trigger nil "23.1")
+(make-obsolete-variable 'operating-system-release nil "28.1")
 
 (make-obsolete 'run-window-configuration-change-hook nil "27.1")