[gtk+] messagedialog: Remove unused header

[Matthias Clasen <matthiasc src gnome org>]

commit 515b13fdd5450e0241194a200634eba309c0eaad
Author: Benjamin Otte <otte redhat com>
Date:   Fri Jan 20 02:02:32 2017 +0100

    messagedialog: Remove unused header

 gtk/gtkmessagedialog.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkmessagedialog.c b/gtk/gtkmessagedialog.c
index c013d56..f74dab0 100644
--- a/gtk/gtkmessagedialog.c
+++ b/gtk/gtkmessagedialog.c
@@ -34,7 +34,6 @@
 #include "gtklabel.h"
 #include "gtkbox.h"
 #include "gtkbbox.h"
-#include "gtkimage.h"
 #include "gtkintl.h"
 #include "gtkprivate.h"
 #include "gtktypebuiltins.h"