Remove now unused dependencies

Author: NullVoxPopuli

lib/index.js

@@ -1,8 +1,5 @@
 'use strict';
 
-const MergeTrees = require('broccoli-merge-trees');
-const createFile = require('broccoli-file-creator');
-const Funnel = require('broccoli-funnel');
 const path = require('path');
 const Overrides = require('./overrides');
 const SupportedBrowsers = require('./browsers');

package.json

@@ -65,8 +65,6 @@
     "@simple-dom/interface": "^1.4.0",
     "backburner.js": "^2.8.0",
     "broccoli-file-creator": "^2.1.1",
-    "broccoli-funnel": "^3.0.8",
-    "broccoli-merge-trees": "^4.2.0",
     "chalk": "^4.0.0",
     "ember-cli-babel": "^8.3.1",
     "ember-cli-get-component-path-option": "^1.0.0",