Remove object-assign package

Author: Robert Jackson

lib/manifest-generator.js

@@ -1,5 +1,4 @@
 var Addon = require('ember-cli/lib/models/addon');
-var objectAssign = require('object-assign');
 var findHost = require('./utils/find-host');
 
 /**
@@ -40,7 +39,7 @@ var ManifestGenerator = Addon.extend({
 
     var filesToIgnore = (this.manifestOptions && this.manifestOptions.filesToIgnore || []).concat(assetLoaderOptions.filesToIgnore || []);
 
-    var manifestOptions = objectAssign({
+    var manifestOptions = Object.assign({
       appName: app.name
     }, this.manifestOptions, assetLoaderOptions, { filesToIgnore });
 

yarn.lock

@@ -8852,7 +8852,7 @@ oauth-sign@~0.9.0:
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
   integrity sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==
 
-[email protected], object-assign@^4.1.0, object-assign@^4.1.1:
+[email protected], object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"