refactor: move secondary entry point rollup configs.

packages/animations/rollup-testing.config.js

@@ -1,20 +0,0 @@
-/**
- * @license
- * Copyright Google Inc. All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-export default {
-  entry: '../../../dist/packages-dist/animation/testing/index.js',
-  dest: '../../../dist/packages-dist/animation/bundles/animation-testing.umd.js',
-  format: 'umd',
-  moduleName: 'ng.animation.testing',
-  globals: {
-    '@angular/core': 'ng.core',
-    '@angular/animation': 'ng.animation',
-    'rxjs/Observable': 'Rx',
-    'rxjs/Subject': 'Rx'
-  }
-};