[gtk+] sidebarrow: Use GtkButton:icon-name

[Timm Bäder <baedert src gnome org>]

commit a829929a417a02d2881f6c49ca62a187b76b537b
Author: Timm Bäder <mail baedert org>
Date:   Sat Oct 29 15:51:17 2016 +0200

    sidebarrow: Use GtkButton:icon-name

 gtk/ui/gtksidebarrow.ui |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)
---
diff --git a/gtk/ui/gtksidebarrow.ui b/gtk/ui/gtksidebarrow.ui
index f275cdf..3e66797 100644
--- a/gtk/ui/gtksidebarrow.ui
+++ b/gtk/ui/gtksidebarrow.ui
@@ -46,15 +46,8 @@
                     <property name="valign">center</property>
                     <property name="margin-start">4px</property>
                     <property name="no-show-all">1</property>
-                    <child>
-                      <object class="GtkImage">
-                        <property name="visible">1</property>
-                        <property name="icon-name">media-eject-symbolic</property>
-                        <property name="icon-size">1</property>
-                      </object>
-                    </child>
+                    <property name="icon-name">media-eject-symbolic</property>
                     <style>
-                      <class name="image-button"/>
                       <class name="sidebar-button"/>
                     </style>
                   </object>