[gtk+/wip/baedert/drawing: 130/156] gtk4-demo: Remove a GtkBox expand usage

[Timm Bäder <baedert src gnome org>]

commit 452c60030f527add1c4b2ce873de0a8b66a6abb0
Author: Timm Bäder <mail baedert org>
Date:   Sat May 6 17:20:58 2017 +0200

    gtk4-demo: Remove a GtkBox expand usage

 demos/gtk-demo/theming.ui |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/demos/gtk-demo/theming.ui b/demos/gtk-demo/theming.ui
index 7d3c103..46113ef 100644
--- a/demos/gtk-demo/theming.ui
+++ b/demos/gtk-demo/theming.ui
@@ -252,10 +252,8 @@
             <property name="visible">1</property>
             <property name="label">Plain</property>
             <property name="halign">end</property>
+            <property name="hexpand">1</property>
           </object>
-          <packing>
-            <property name="expand">1</property>
-          </packing>
         </child>
         <child>
           <object class="GtkButton">