[mutter/wayland] Remove meta_core_increment_event_serial

[Jasper St. Pierre <jstpierre src gnome org>]

commit dfcefd3315b662f3b1349f519de095a093ab438e
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Mar 18 21:11:36 2014 -0400

    Remove meta_core_increment_event_serial
    
    It's unused.

 src/core/core.c |   10 ----------
 src/core/core.h |    6 ------
 2 files changed, 0 insertions(+), 16 deletions(-)
---
diff --git a/src/core/core.c b/src/core/core.c
index 9f41a35..0c46a2f 100644
--- a/src/core/core.c
+++ b/src/core/core.c
@@ -719,16 +719,6 @@ meta_core_set_screen_cursor (Display *xdisplay,
 }
 
 void
-meta_core_increment_event_serial (Display *xdisplay)
-{
-  MetaDisplay *display;
-  
-  display = meta_display_for_x_display (xdisplay);
-
-  meta_display_increment_event_serial (display);
-}
-
-void
 meta_invalidate_default_icons (void)
 {
   MetaDisplay *display = meta_get_display ();
diff --git a/src/core/core.h b/src/core/core.h
index a332153..4c9e587 100644
--- a/src/core/core.h
+++ b/src/core/core.h
@@ -193,12 +193,6 @@ void       meta_core_set_screen_cursor (Display *xdisplay,
                                         Window   frame_on_screen,
                                         MetaCursor cursor);
 
-/* Used because we ignore EnterNotify when a window is unmapped that
- * really shouldn't cause focus changes, by comparing the event serial
- * of the EnterNotify and the UnmapNotify.
- */
-void meta_core_increment_event_serial (Display *display);
-
 void meta_invalidate_default_icons (void);
 
 void meta_core_add_old_event_mask (Display     *xdisplay,