[gnome-shell-extensions/wip/fmuellner/gtk4: 9/13] auto-move-windows: Stop using header func for separators

[Florian Müllner <fmuellner src gnome org>]

commit 36781109c04d397a1c9b918a259ca1af3996073f
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Apr 15 23:32:20 2020 +0200

    auto-move-windows: Stop using header func for separators
    
    GTK4 added built-in support for this common pattern, so use that
    instead.

 extensions/auto-move-windows/prefs.js | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
---
diff --git a/extensions/auto-move-windows/prefs.js b/extensions/auto-move-windows/prefs.js
index 5db6c85..3b7e133 100644
--- a/extensions/auto-move-windows/prefs.js
+++ b/extensions/auto-move-windows/prefs.js
@@ -40,8 +40,8 @@ class AutoMoveSettingsWidget extends Gtk.ScrolledWindow {
         this._list = new Gtk.ListBox({
             selection_mode: Gtk.SelectionMode.NONE,
             valign: Gtk.Align.START,
+            show_separators: true,
         });
-        this._list.set_header_func(this._updateHeader.bind(this));
         box.append(this._list);
 
         const context = this._list.get_style_context();
@@ -143,12 +143,6 @@ class AutoMoveSettingsWidget extends Gtk.ScrolledWindow {
         this._settings.unblock_signal_handler(this._changedId);
         this._updateAction.enabled = true;
     }
-
-    _updateHeader(row, before) {
-        if (!before || row.get_header())
-            return;
-        row.set_header(new Gtk.Separator());
-    }
 });
 
 const RuleRow = GObject.registerClass({