fix: display framework version on bootstrapped component (#13252)

modules/@angular/core/index.ts

@@ -12,10 +12,5 @@
  * Entry point for all public APIs of the core package.
  */
 export * from './src/core';
-import {Version} from './src/core';
-/**
- * @stable
- */
-export const VERSION = new Version('0.0.0-PLACEHOLDER');
 
 // This file only reexports content of the `src` folder. Keep it that way.