[gtk+] icon-browser: Remove GtkEventBox from .ui file

[Carlos Garnacho <carlosg src gnome org>]

commit ce1cfee48c2e2d6db6f848a957b6c5015dc7d57b
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Oct 19 16:13:47 2017 +0200

    icon-browser: Remove GtkEventBox from .ui file
    
    The patch adding scalable icons' info was forward ported too much as-is
    to master. The event box is both unused and unnecessary here.

 demos/icon-browser/window.ui |   11 +++--------
 1 files changed, 3 insertions(+), 8 deletions(-)
---
diff --git a/demos/icon-browser/window.ui b/demos/icon-browser/window.ui
index e32e2aa..d978909 100644
--- a/demos/icon-browser/window.ui
+++ b/demos/icon-browser/window.ui
@@ -207,15 +207,10 @@
               </packing>
             </child>
             <child>
-              <object class="GtkEventBox">
+              <object class="GtkImage" id="image6">
                 <property name="visible">True</property>
-                <child>
-                  <object class="GtkImage" id="image6">
-                    <property name="visible">True</property>
-                    <property name="halign">center</property>
-                    <property name="valign">end</property>
-                  </object>
-                </child>
+                <property name="halign">center</property>
+                <property name="valign">end</property>
               </object>
               <packing>
                 <property name="left-attach">5</property>