[gnome-shell] renameFolderMenu: Don't save the source

[Florian Müllner <fmuellner src gnome org>]

commit d6ba6dc554d0ee077f5ea692a8dfc4e0f59215ce
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Wed Sep 11 20:14:27 2019 +0200

    renameFolderMenu: Don't save the source
    
    The source actor is already tracked by the PopupMenu internally as
    sourceActor, while nothing in RenameFolderMenu uses the source, so we can
    drop this.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/720

 js/ui/appDisplay.js | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 21469d1f99..39fa99e7ed 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -1717,7 +1717,6 @@ var RenameFolderMenu = class RenameFolderMenu extends PopupMenu.PopupMenu {
     constructor(source, folder) {
         super(source.actor, 0.5, St.Side.BOTTOM);
 
-        this._source = source;
         this._folder = folder;
 
         // We want to keep the item hovered while the menu is up