[gtk+] Drop unused macros

[Matthias Clasen <matthiasc src gnome org>]

commit 8041c012fe41e9e03ba1f352b3d4a9ccec1e07a6
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun May 1 11:22:55 2016 -0400

    Drop unused macros
    
    These have been sitting here forever, unused. Time to drop them

 gdk/gdkevents.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index d562a9c..1a79df0 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -2067,12 +2067,6 @@ gdk_get_show_events (void)
   return (_gdk_debug_flags & GDK_DEBUG_EVENTS) != 0;
 }
 
-/* What do we do with G_IO_NVAL?
- */
-#define READ_CONDITION (G_IO_IN | G_IO_HUP | G_IO_ERR)
-#define WRITE_CONDITION (G_IO_OUT | G_IO_ERR)
-#define EXCEPTION_CONDITION (G_IO_PRI)
-
 static void
 gdk_synthesize_click (GdkDisplay *display,
                       GdkEvent   *event,