[gnome-shell/gbsneto/icon-grid-part1: 7/9] baseAppView: Remove unused BaseAppView methods

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 73b7a6560e31ba7f2ffb6f1af15a88fa6ad0659b
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Jul 2 10:12:08 2019 -0300

    baseAppView: Remove unused BaseAppView methods
    
    Now that BaseAppView does not allow for subclasses to add
    and remove items directly, the addItem() method can be
    removed.
    
    Equally, BaseAppView.hasItem() is now unused since it's
    functionality is implicitly performed by the diff algorithm.
    
    Remove BaseAppView.addItem() and BaseAppView.hasItem().
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/645

 js/ui/appDisplay.js | 13 -------------
 1 file changed, 13 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 5030e1efa..9ea76f470 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -148,19 +148,6 @@ class BaseAppView {
         return this._allItems;
     }
 
-    hasItem(id) {
-        return this._items[id] !== undefined;
-    }
-
-    addItem(icon) {
-        let id = icon.id;
-        if (this.hasItem(id))
-            throw new Error(`icon with id ${id} already added to view`);
-
-        this._allItems.push(icon);
-        this._items[id] = icon;
-    }
-
     _compareItems(a, b) {
         return a.name.localeCompare(b.name);
     }