[gtk/wip/carlosg/no-ping-serials-for-input] gdk/wayland: Do not use xdg_wm_base.ping serials as "user input" serials

[Carlos Garnacho <carlosg src gnome org>]

commit c5ac80be2b2a86cdeb9fcd8dc85cc9c0108c818e
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Nov 4 14:40:21 2021 +0100

    gdk/wayland: Do not use xdg_wm_base.ping serials as "user input" serials
    
    Ping/pong serials are not meant to be interpreted as user input serials
    (e.g. those given back later to the compositor on grabs). As a matter
    of fact, Mutter uses a different count (i.e. timestamps) in these, so
    using these serials may confuse the compositor into denying certain
    operations like DnD.

 gdk/wayland/gdkdisplay-wayland.c | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/gdk/wayland/gdkdisplay-wayland.c b/gdk/wayland/gdkdisplay-wayland.c
index 8828d6e987..a277954832 100644
--- a/gdk/wayland/gdkdisplay-wayland.c
+++ b/gdk/wayland/gdkdisplay-wayland.c
@@ -130,10 +130,6 @@ xdg_wm_base_ping (void               *data,
                   struct xdg_wm_base *xdg_wm_base,
                   uint32_t            serial)
 {
-  GdkWaylandDisplay *display_wayland = data;
-
-  _gdk_wayland_display_update_serial (display_wayland, serial);
-
   GDK_NOTE (EVENTS,
             g_message ("ping, shell %p, serial %u\n", xdg_wm_base, serial));