[libhandy] demo: Use the default HdyPreferencesWindow sizes

[Alexander Mikhaylenko <alexm src gnome org>]

commit 5d0e8e8bc0ed1eb935c79e035cbeeab575419dd0
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Jul 23 11:39:51 2020 +0200

    demo: Use the default HdyPreferencesWindow sizes

 examples/hdy-demo-preferences-window.ui | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/examples/hdy-demo-preferences-window.ui b/examples/hdy-demo-preferences-window.ui
index e669860b..83c83a97 100644
--- a/examples/hdy-demo-preferences-window.ui
+++ b/examples/hdy-demo-preferences-window.ui
@@ -3,9 +3,6 @@
   <requires lib="gtk+" version="3.0"/>
   <template class="HdyDemoPreferencesWindow" parent="HdyPreferencesWindow">
     <property name="can-swipe-back">True</property>
-    <property name="default_height">700</property>
-    <property name="default_width">640</property>
-    <property name="width_request">300</property>
     <child>
       <object class="HdyPreferencesPage">
         <property name="icon_name">edit-select-all-symbolic</property>