[gtk+] wayland: Remove unused data structure

[Christophe Fergeau <teuf src gnome org>]

commit 93f6f253ea123860561451c9a0edbd5e0b7504b7
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Tue Nov 28 17:43:24 2017 +0100

    wayland: Remove unused data structure
    
    Signed-off-by: Christophe Fergeau <cfergeau redhat com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790031

 gdk/wayland/gdkselection-wayland.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/gdk/wayland/gdkselection-wayland.c b/gdk/wayland/gdkselection-wayland.c
index f85071c..e8f9453 100644
--- a/gdk/wayland/gdkselection-wayland.c
+++ b/gdk/wayland/gdkselection-wayland.c
@@ -61,12 +61,6 @@ struct _StoredSelection
   gint fd;
 };
 
-struct _DataSourceData
-{
-  GdkWindow *window;
-  GdkAtom selection;
-};
-
 struct _DataOfferData
 {
   GDestroyNotify destroy_notify;