[gnome-control-center] shell: don't set a shadow type on the GtkViewport

[Cosimo Cecchi <cosimoc src gnome org>]

commit 5edec8138b127d0e783918c6860aca35345e7d8e
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Mar 27 17:42:25 2012 -0400

    shell: don't set a shadow type on the GtkViewport
    
    https://bugzilla.gnome.org/show_bug.cgi?id=672956

 shell/shell.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/shell/shell.ui b/shell/shell.ui
index fb85892..f1c5d3d 100644
--- a/shell/shell.ui
+++ b/shell/shell.ui
@@ -117,6 +117,7 @@
                   <object class="GtkViewport" id="viewport">
                     <property name="visible">True</property>
                     <property name="resize_mode">queue</property>
+                    <property name="shadow_type">none</property>
                     <child>
                       <object class="GtkVBox" id="main-vbox">
                         <property name="visible">True</property>