[gtk+] Drop GtkArrow use in GtkTreeView

[Matthias Clasen <matthiasc src gnome org>]

commit 219f96b8a3b48c9cfe48bbefa2c260e82ca251e7
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue May 13 21:19:09 2014 -0400

    Drop GtkArrow use in GtkTreeView
    
    This was just an unneeded include anyway.

 gtk/gtktreeview.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 73c37c1..a401cc5 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -33,7 +33,6 @@
 #include "gtkbutton.h"
 #include "gtklabel.h"
 #include "gtkbox.h"
-#include "gtkarrow.h"
 #include "gtkintl.h"
 #include "gtkbindings.h"
 #include "gtkcontainer.h"