[gtk/drop-accel-label: 1/2] Drop GtkCallback

[Matthias Clasen <matthiasc src gnome org>]

commit 2b8aeed4d8bac16ba42521a2a92fb711600ecb9e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Aug 4 22:17:52 2020 -0400

    Drop GtkCallback
    
    It is no longer used in any of our public APIs.

 docs/reference/gtk/gtk4-sections.txt |  1 -
 gtk/gtkwidget.h                      | 11 -----------
 gtk/gtkwidgetprivate.h               |  3 +++
 3 files changed, 3 insertions(+), 12 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index 0efe0d7da7..90c6f1aec8 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -4406,7 +4406,6 @@ gtk_widget_paintable_get_type
 <TITLE>GtkWidget</TITLE>
 GtkWidget
 GtkWidgetClass
-GtkCallback
 GtkRequisition
 GtkAllocation
 gtk_widget_new
diff --git a/gtk/gtkwidget.h b/gtk/gtkwidget.h
index e3ead82e2f..e86f07d1c0 100644
--- a/gtk/gtkwidget.h
+++ b/gtk/gtkwidget.h
@@ -70,17 +70,6 @@ typedef struct _GtkWidgetClassPrivate  GtkWidgetClassPrivate;
  */
 typedef         GdkRectangle       GtkAllocation;
 
-/**
- * GtkCallback:
- * @widget: the widget to operate on
- * @data: (closure): user-supplied data
- *
- * The type of the callback functions used for e.g. iterating over
- * the children of a container, see gtk_container_foreach().
- */
-typedef void    (*GtkCallback)     (GtkWidget        *widget,
-                                    gpointer          data);
-
 /**
  * GtkTickCallback:
  * @widget: the widget
diff --git a/gtk/gtkwidgetprivate.h b/gtk/gtkwidgetprivate.h
index 136533622a..9ab7f37f3c 100644
--- a/gtk/gtkwidgetprivate.h
+++ b/gtk/gtkwidgetprivate.h
@@ -306,6 +306,9 @@ void              gtk_widget_adjust_baseline_request       (GtkWidget *widget,
                                                             int       *minimum_baseline,
                                                             int       *natural_baseline);
 
+typedef void    (*GtkCallback)     (GtkWidget        *widget,
+                                    gpointer          data);
+
 void              gtk_widget_forall                        (GtkWidget            *widget,
                                                             GtkCallback           callback,
                                                             gpointer              user_data);