[gnome-sudoku] gnome-sudoku.ui: removed invalid property

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 3ac69ddfa133d5c1dbced12b805c994baf2f6e06
Author: lajonss <l3n1 dupaw eu>
Date:   Tue Nov 24 08:10:24 2020 +0100

    gnome-sudoku.ui: removed invalid property

 data/gnome-sudoku.ui | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/data/gnome-sudoku.ui b/data/gnome-sudoku.ui
index 1560265b..348ced24 100644
--- a/data/gnome-sudoku.ui
+++ b/data/gnome-sudoku.ui
@@ -422,7 +422,6 @@
             </child>
           </object> <!-- End of main_squeezer -->
           <packing>
-            <property name="pack-type">center</property>
             <property name="expand">True</property>
           </packing>
         </child>