CVS Emacs list-buffer-noselect calls set-window-buffer, displays every buffer briefly!

[Francis Litterio]

Revision 1.67 of lisp/buff-menu.el changed list-buffers-noselect so that
it now does

        (set-window-buffer (selected-window) buffer)

once for every buffer while building the buffer menu.  On my Windows XP
machine, this makes Emacs briefely display every buffer for a fraction
of a section before displaying the buffer menu.  Very annoying!

This patch fixes it without (apparently) causing a loss of
functionality:

--- buff-menu.el        02 Sep 2004 10:36:13 -0400      1.67
+++ buff-menu.el        02 Sep 2004 15:05:04 -0400      
@@ -641,7 +641,6 @@
                       (save-window-excursion
                         (setq name (buffer-name)
                               mode (progn
-                                     (set-window-buffer (selected-window) 
buffer)
                                      (concat (format-mode-line mode-name)
                                              (if mode-line-process
                                                  (format-mode-line 
mode-line-process))))