diff --git a/src/x11/window-x11.c b/src/x11/window-x11.c
index 0209c7c52..3f34f03a1 100644
--- a/src/x11/window-x11.c
+++ b/src/x11/window-x11.c
@@ -4282,19 +4282,6 @@ meta_window_x11_get_sync_counter (MetaWindow *window)
   return &priv->sync_counter;
 }
 
-gboolean
-meta_window_x11_has_active_sync_alarms (MetaWindow *window)
-{
-  MetaWindowX11 *window_x11 = META_WINDOW_X11 (window);
-  MetaWindowX11Private *priv = meta_window_x11_get_instance_private (window_x11);
-
-  if (window->frame &&
-      meta_sync_counter_has_sync_alarm (meta_frame_get_sync_counter (window->frame)))
-    return TRUE;
-
-  return meta_sync_counter_has_sync_alarm (&priv->sync_counter);
-}
-
 gboolean
 meta_window_x11_is_awaiting_sync_response (MetaWindow *window)
 {
diff --git a/src/x11/window-x11.h b/src/x11/window-x11.h
index 63d06cd9c..4977aa9c0 100644
--- a/src/x11/window-x11.h
+++ b/src/x11/window-x11.h
@@ -104,8 +104,6 @@ gboolean meta_window_x11_can_unredirect          (MetaWindowX11 *window_x11);
 
 MetaSyncCounter * meta_window_x11_get_sync_counter (MetaWindow *window);
 
-gboolean meta_window_x11_has_active_sync_alarms (MetaWindow *window);
-
 gboolean meta_window_x11_is_awaiting_sync_response (MetaWindow *window);
 
 void meta_window_x11_check_update_resize (MetaWindow *window);