[gtk] docs: Remove a mention of gtk_window_get_size

[Matthias Clasen <matthiasc src gnome org>]

commit 08ca8a361e4207c17ef715d29655a0330b166eb3
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 8 10:44:33 2020 -0500

    docs: Remove a mention of gtk_window_get_size
    
    That function has been removed.

 gtk/gtkwindow.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/gtk/gtkwindow.c b/gtk/gtkwindow.c
index 7e22e4bcbe..77ca123670 100644
--- a/gtk/gtkwindow.c
+++ b/gtk/gtkwindow.c
@@ -3461,7 +3461,7 @@ gtk_window_set_default_size_internal (GtkWindow    *window,
  *
  * If you use this function to reestablish a previously saved window size,
  * note that the appropriate size to save is the one returned by
- * gtk_window_get_size(). Using the window allocation directly will not
+ * gtk_window_get_default_size(). Using the window allocation directly will not
  * work in all circumstances and can lead to growing or shrinking windows.
  */
 void
@@ -3487,7 +3487,6 @@ gtk_window_set_default_size (GtkWindow   *window,
  * height indicates that a default size has not been explicitly set
  * for that dimension, so the “natural” size of the window will be
  * used.
- * 
  **/
 void
 gtk_window_get_default_size (GtkWindow *window,