[gtk/file-chooser-api-cleanup-2] filechoosernative: Update docs

[Matthias Clasen <matthiasc src gnome org>]

commit 911ae649311c0a8c955793d14a35324f85eaa4a4
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jul 9 01:44:09 2020 -0400

    filechoosernative: Update docs
    
    Remove mention of things that are no longer
    in the filechooser api.

 gtk/gtkfilechoosernative.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)
---
diff --git a/gtk/gtkfilechoosernative.c b/gtk/gtkfilechoosernative.c
index e5510009b7..203206956f 100644
--- a/gtk/gtkfilechoosernative.c
+++ b/gtk/gtkfilechoosernative.c
@@ -163,15 +163,10 @@
  * * #GtkFileChooser::current-folder-changed
  * * #GtkFileChooser::selection-changed
  *
- * You can also not use the methods that directly control user navigation:
- * * gtk_file_chooser_unselect_filename()
- * * gtk_file_chooser_select_all()
- * * gtk_file_chooser_unselect_all()
- *
  * If you need any of the above you will have to use #GtkFileChooserDialog directly.
  *
- * No operations that change the dialog work while the dialog is visible. Set
- * all the properties that are required before showing the dialog.
+ * No operations that change the dialog work while the dialog is visible.
+ * Set all the properties that are required before showing the dialog.
  *
  * ## Win32 details ## {#gtkfilechooserdialognative-win32}
  *
@@ -179,7 +174,7 @@
  * used. It supports many of the features that #GtkFileChooserDialog
  * does, but there are some things it does not handle:
  *
- * * Any #GtkFileFilter added using a mimetype or custom filter.
+ * * Any #GtkFileFilter added using a mimetype
  *
  * If any of these features are used the regular #GtkFileChooserDialog
  * will be used in place of the native one.
@@ -189,10 +184,7 @@
  * When the org.freedesktop.portal.FileChooser portal is available on the
  * session bus, it is used to bring up an out-of-process file chooser. Depending
  * on the kind of session the application is running in, this may or may not
- * be a GTK+ file chooser. In this situation, the following things are not
- * supported and will be silently ignored:
- *
- * * Any #GtkFileFilter added with a custom filter.
+ * be a GTK file chooser.
  *
  * ## macOS details ## {#gtkfilechooserdialognative-macos}
  *
@@ -200,8 +192,6 @@
  * file chooser dialogs. Some features provided by #GtkFileChooserDialog are
  * not supported:
  *
- * * Any #GtkFileFilter added with a custom filter.
- *
  * * Shortcut folders.
  */