fix(packages): use ES modules for primary build (#11120)

modules/@angular/core/src/profile/wtf_init.ts

@@ -1,12 +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
- */
-
-/**
- * This is here because DART requires it. It is noop in JS.
- */
-export function wtfInit() {}