appDisplay: Don't change search entry's reactive state

The folder dialog eats all events now, there's no need to
disable the search entry anymore.

https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1301

js/ui/appDisplay.js

@@ -722,10 +722,6 @@ class AppDisplay extends BaseAppView {
                 });
             }
             this._updateIconOpacities(isOpen);
-
-            // Toggle search entry
-            Main.overview.searchEntry.reactive = !isOpen;
-
             this._displayingDialog = isOpen;
         });
     }