[gtk/wip/baedert/for-master] gtk4-demo: Remove unused size group

[Timm Bäder <baedert src gnome org>]

commit 38b53964aea2c86626640205bd8a025df9df5aa5
Author: Timm Bäder <mail baedert org>
Date:   Fri Dec 25 11:17:03 2020 +0100

    gtk4-demo: Remove unused size group

 demos/widget-factory/widget-factory.ui | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index 5532619bc1..306cbbac42 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -3298,7 +3298,6 @@ bad things might happen.</property>
       </object>
     </child>
   </object>
-  <object class="GtkSizeGroup" id="basement-indicators"/>
   <menu id="new_style_menu_model">
     <section>
       <attribute name="display-hint">circular-buttons</attribute>