[gnome-user-docs] Update shell-exit.png: No restart button anymore

[Andre Klapper <aklapper src gnome org>]

commit 9baff53c3e33610aaa23c1ef90007a1f34e603d6
Author: Andre Klapper <a9016009 gmx de>
Date:   Mon Sep 10 15:01:49 2018 +0200

    Update shell-exit.png: No restart button anymore

 gnome-help/C/figures/shell-exit.png | Bin 139241 -> 133892 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
---
diff --git a/gnome-help/C/figures/shell-exit.png b/gnome-help/C/figures/shell-exit.png
index 22558374..21f99bd4 100644
Binary files a/gnome-help/C/figures/shell-exit.png and b/gnome-help/C/figures/shell-exit.png differ