[gnome-shell] overview: Clean up dead code

[Marge Bot <marge-bot src gnome org>]

commit f7f46ca9ac11aadce2a575a0f3d8fc87ff8a1f19
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Feb 12 12:24:12 2021 +0100

    overview: Clean up dead code
    
    These unused functions accessed undefined functions on a now undefined
    variable/class. This vestigial code can go away.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1643>

 js/ui/overview.js | 12 ------------
 1 file changed, 12 deletions(-)
---
diff --git a/js/ui/overview.js b/js/ui/overview.js
index af3e5be2b9..6fbc39b4e1 100644
--- a/js/ui/overview.js
+++ b/js/ui/overview.js
@@ -115,10 +115,6 @@ class OverviewActor extends St.BoxLayout {
         return this._controls.searchEntry;
     }
 
-    get viewSelector() {
-        return this._controls.viewSelector;
-    }
-
     get controls() {
         return this._controls;
     }
@@ -249,14 +245,6 @@ var Overview = class {
         this._swipeTracker = swipeTracker;
     }
 
-    addSearchProvider(provider) {
-        this._overview.viewSelector.addSearchProvider(provider);
-    }
-
-    removeSearchProvider(provider) {
-        this._overview.viewSelector.removeSearchProvider(provider);
-    }
-
     //
     // options:
     //  - undoCallback (function): the callback to be called if undo support is needed