[gtk+/gtk-3-22] Don't leak a pixbuf reference in dnd

[Matthias Clasen <matthiasc src gnome org>]

commit f7fb610278191be9dd19642b21c3e1c3ab9d8776
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Nov 29 14:42:35 2016 -0500

    Don't leak a pixbuf reference in dnd
    
    https://bugzilla.gnome.org/show_bug.cgi?id=775316

 gtk/gtkdragsource.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkdragsource.c b/gtk/gtkdragsource.c
index d75ef3c..11bbc69 100644
--- a/gtk/gtkdragsource.c
+++ b/gtk/gtkdragsource.c
@@ -371,7 +371,6 @@ gtk_drag_source_set_icon_pixbuf (GtkWidget *widget,
 
   site = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
   g_return_if_fail (site != NULL); 
-  g_object_ref (pixbuf);
 
   g_clear_pointer (&site->image_def, gtk_image_definition_unref);
   site->image_def = gtk_image_definition_new_pixbuf (pixbuf, 1);