[gtk+/gtk-3-20] Drop unused macros

[Matthias Clasen <matthiasc src gnome org>]

commit 964eb99a5e1e748e33828a9969e9d1b2bc2d70d0
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 2eb249e..0d2e7ea 100644
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -2066,12 +2066,6 @@ 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,