[gnome-chess] menus: Drop separator between Preferences and Help

[Jeremy Bicha <jbicha src gnome org>]

commit 7da3112a1f2961945ab81abc05e0a2ff094a92a3
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Thu Dec 6 17:06:35 2018 -0500

    menus: Drop separator between Preferences and Help
    
    as recommended by
    https://gitlab.gnome.org/GNOME/Initiatives/wikis/App-Menu-Retirement

 data/gnome-chess.ui | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/data/gnome-chess.ui b/data/gnome-chess.ui
index 4bb81f7..6750c50 100644
--- a/data/gnome-chess.ui
+++ b/data/gnome-chess.ui
@@ -7,8 +7,6 @@
         <attribute name="label" translatable="yes">Preferences</attribute>
         <attribute name="action">app.preferences</attribute>
       </item>
-    </section>
-    <section>
       <item>
         <attribute name="label" translatable="yes">Help</attribute>
         <attribute name="action">app.help</attribute>