Delete variable window-system-version obsolete since 24.3obsolete-24.3

* lisp/frame.el (window-system-version): Delete variable.
* src/dispnew.c (syms_of_display) <Vwindow_system_version>:
Delete DEFVAR, obsolete since 24.3.
(init_display_interactive, syms_of_display_for_pdumper):
* src/msdos.c (internal_terminal_init):
* src/nsterm.m (ns_term_init):
* src/pgtkfns.c (pgtk_display_info_for_name):
* src/w32fns.c (w32_display_info_for_name, Fx_open_connection):
* src/xfns.c (x_display_info_for_name, Fx_open_connection): Don't
set above deleted variable.
* admin/admin.el (set-version): Don't update above deleted
variable in msdos.c.
* lisp/textmodes/artist.el (artist-submit-bug-report): Don't use
above deleted variable.

1 files changed, 0 insertions, 4 deletions

diff --git a/lisp/frame.el b/lisp/frame.el
index 9361683c28a..ae8449d0ea8 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -3050,10 +3050,6 @@ See also `toggle-frame-maximized'."
 
 (make-variable-buffer-local 'show-trailing-whitespace)
 
-;; Defined in dispnew.c.
-(make-obsolete-variable
- 'window-system-version "it does not give useful information." "24.3")
-
 (defun set-frame-property--interactive (prompt number)
   "Get a value for `set-frame-width' or `set-frame-height', prompting with PROMPT.
 Offer NUMBER as default value, if it is a natural number."