Revert "fix: cleanup public api of platform-server"

This reverts commit ac84468f1c.

modules/@angular/platform-server/test/integration_spec.ts

@@ -1,34 +0,0 @@
-import {Component, disposePlatform} from '@angular/core';
-import {afterEach, async, beforeEach, ddescribe, describe, expect, iit, inject, it, xdescribe, xit} from '@angular/core/testing';
-import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
-import {serverBootstrap} from '@angular/platform-server';
-
-import {Parse5DomAdapter} from '../src/parse5_adapter';
-
-function writeBody(html: string): any {
-  var dom = getDOM();
-  var doc = dom.defaultDoc();
-  var body = dom.querySelector(doc, 'body');
-  dom.setInnerHTML(body, html);
-  return body;
-}
-
-export function main() {
-  if (getDOM().supportsDOMEvents()) return;  // NODE only
-
-  describe('platform-server integration', () => {
-
-    afterEach(() => disposePlatform());
-
-    it('should bootstrap', async(() => {
-         var body = writeBody('<app></app>');
-         serverBootstrap(MyServerApp).then(() => {
-           expect(getDOM().getText(body)).toEqual('Works!');
-         });
-       }));
-  });
-}
-
-@Component({selector: 'app', template: `Works!`})
-class MyServerApp {
-}