[gtk+] Remove deprecated gdk_display_get_n_screens

[Matthias Clasen <matthiasc src gnome org>]

commit 78d0876c46ffb51d06513495e4eccd6ad6bb2542
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Oct 25 15:21:46 2016 -0400

    Remove deprecated gdk_display_get_n_screens

 gdk/gdkdisplay.c |   20 --------------------
 gdk/gdkdisplay.h |    2 --
 2 files changed, 0 insertions(+), 22 deletions(-)
---
diff --git a/gdk/gdkdisplay.c b/gdk/gdkdisplay.c
index bd9d152..539304b 100644
--- a/gdk/gdkdisplay.c
+++ b/gdk/gdkdisplay.c
@@ -1520,26 +1520,6 @@ gdk_display_get_name (GdkDisplay *display)
 }
 
 /**
- * gdk_display_get_n_screens:
- * @display: a #GdkDisplay
- *
- * Gets the number of screen managed by the @display.
- *
- * Returns: number of screens.
- *
- * Since: 2.2
- *
- * Deprecated: 3.10: The number of screens is always 1.
- */
-gint
-gdk_display_get_n_screens (GdkDisplay *display)
-{
-  g_return_val_if_fail (GDK_IS_DISPLAY (display), 0);
-
-  return 1;
-}
-
-/**
  * gdk_display_get_screen:
  * @display: a #GdkDisplay
  * @screen_num: the screen number
diff --git a/gdk/gdkdisplay.h b/gdk/gdkdisplay.h
index 3f8376f..75e9845 100644
--- a/gdk/gdkdisplay.h
+++ b/gdk/gdkdisplay.h
@@ -50,8 +50,6 @@ GdkDisplay *gdk_display_open                (const gchar *display_name);
 GDK_AVAILABLE_IN_ALL
 const gchar * gdk_display_get_name         (GdkDisplay *display);
 
-GDK_DEPRECATED_IN_3_10
-gint        gdk_display_get_n_screens      (GdkDisplay  *display);
 GDK_DEPRECATED_IN_3_20
 GdkScreen * gdk_display_get_screen         (GdkDisplay  *display,
                                             gint         screen_num);