[gtk+] gtkwindowprivate: Remove _gtk_window_keys_foreach

[Timm Bäder <baedert src gnome org>]

commit 54c362bf482b5805725d7aa87cc5d3d636ad1667
Author: Timm Bäder <mail baedert org>
Date:   Mon Aug 14 14:24:29 2017 +0200

    gtkwindowprivate: Remove _gtk_window_keys_foreach
    
    Unused outside of gtkwindow.c

 gtk/gtkwindow.c        |    2 +-
 gtk/gtkwindowprivate.h |    4 ----
 2 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 5be147f..a6b64d8 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -10062,7 +10062,7 @@ gtk_window_mnemonic_hash_foreach (guint      keyval,
   (*info->func) (info->window, keyval, info->window->priv->mnemonic_modifier, TRUE, info->func_data);
 }
 
-void
+static void
 _gtk_window_keys_foreach (GtkWindow                *window,
                          GtkWindowKeysForeachFunc func,
                          gpointer                 func_data)
diff --git a/gtk/gtkwindowprivate.h b/gtk/gtkwindowprivate.h
index 4291004..7c37ff3 100644
--- a/gtk/gtkwindowprivate.h
+++ b/gtk/gtkwindowprivate.h
@@ -60,10 +60,6 @@ typedef void (*GtkWindowKeysForeachFunc) (GtkWindow      *window,
                                           gboolean        is_mnemonic,
                                           gpointer        data);
 
-void _gtk_window_keys_foreach (GtkWindow               *window,
-                               GtkWindowKeysForeachFunc func,
-                               gpointer                 func_data);
-
 gboolean _gtk_window_check_handle_wm_event (GdkEvent  *event);
 
 /* --- internal (GtkAcceleratable) --- */