[gtk+] tooltip: Remove some unused members

[Timm Bäder <baedert src gnome org>]

commit e64028b41daf7b7a28f0c7c7cfba9d3d8043af55
Author: Timm Bäder <mail baedert org>
Date:   Sat Jan 13 09:28:18 2018 +0100

    tooltip: Remove some unused members

 gtk/gtktooltip.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtktooltip.c b/gtk/gtktooltip.c
index a75ce54..9ad7a1b 100644
--- a/gtk/gtktooltip.c
+++ b/gtk/gtktooltip.c
@@ -101,10 +101,6 @@ struct _GtkTooltip
   GObject parent_instance;
 
   GtkWidget *window;
-  GtkWidget *box;
-  GtkWidget *image;
-  GtkWidget *label;
-  GtkWidget *custom_widget;
 
   GtkWindow *current_window;
   GtkWidget *keyboard_widget;