fix: remove unused imports

Author: mhevery

modules/angular2/test/core/compiler/query_integration_spec.ts

@@ -19,7 +19,6 @@ import {QueryList} from 'angular2/core';
 import {Query, ViewQuery, Component, Directive, View} from 'angular2/annotations';
 
 import {NgIf, NgFor} from 'angular2/angular2';
-import {ListWrapper} from 'angular2/src/facade/collection';
 
 import {BrowserDomAdapter} from 'angular2/src/dom/browser_adapter';
 

modules/angular2/test/core/directive_lifecycle_integration_spec.ts

@@ -13,7 +13,6 @@ import {
   IS_DARTIUM
 } from 'angular2/test_lib';
 
-import {ListWrapper} from 'angular2/src/facade/collection';
 import {Directive, Component, View, LifecycleEvent} from 'angular2/angular2';
 import * as viewAnn from 'angular2/src/core/annotations_impl/view';
 

modules/angular2/test/router/router_link_spec.ts

@@ -18,7 +18,7 @@ import {
   By
 } from 'angular2/test_lib';
 
-import {IMPLEMENTS, print} from 'angular2/src/facade/lang';
+import {IMPLEMENTS} from 'angular2/src/facade/lang';
 
 import {bind, Component, View} from 'angular2/angular2';
 

modules/benchmarks/src/naive_infinite_scroll/index.ts

@@ -1,5 +1,3 @@
-import {MapWrapper} from 'angular2/src/facade/collection';
-
 import {bootstrap} from 'angular2/bootstrap';
 
 import {App} from './app';

modules/examples/src/material/button/index.ts

@@ -4,8 +4,6 @@ import {UrlResolver} from 'angular2/src/services/url_resolver';
 import {commonDemoSetup, DemoUrlResolver} from '../demo_common';
 import {bind} from 'angular2/di';
 
-import {ListWrapper, MapWrapper} from 'angular2/src/facade/collection';
-
 @Component({selector: 'demo-app'})
 @View({templateUrl: './demo_app.html', directives: [MdButton, MdAnchor, NgFor]})
 class DemoApp {

modules/examples/src/person_management/index.ts

@@ -16,7 +16,7 @@ import {Injectable} from 'angular2/di';
 
 import {formDirectives} from 'angular2/forms';
 
-import {RegExpWrapper, print, isPresent, CONST_EXPR} from 'angular2/src/facade/lang';
+import {CONST_EXPR} from 'angular2/src/facade/lang';
 
 
 /**