[gnome-shell] appDisplay: Remove stack from AppDisplay

[Robert Mader <rmader src gnome org>]

commit 1fb570b415f88a97982b390c616fe553c7fe00d6
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Jun 8 11:32:58 2022 -0300

    appDisplay: Remove stack from AppDisplay
    
    The stack widget once was a ShellStack and had a prominent role
    in layouting AppDisplay, but after a series of reworks it's now
    effectively unused, and can be safely removed.
    
    Remove the '_stack' widget from AppDisplay.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2335>

 js/ui/appDisplay.js | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 3bf9a27e20..b0f85f377f 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1336,13 +1336,7 @@ class AppDisplay extends BaseAppView {
         this._pageManager = new PageManager();
         this._pageManager.connect('layout-changed', () => this._redisplay());
 
-        this._stack = new St.Widget({
-            layout_manager: new Clutter.BinLayout(),
-            x_expand: true,
-            y_expand: true,
-        });
-        this.add_actor(this._stack);
-        this._stack.add_child(this._box);
+        this.add_child(this._box);
 
         this._folderIcons = [];