test(@angular-devkit/build-angular): cleanup unused imports

Author: clydin

packages/angular_devkit/build_angular/test/browser/aot_spec_large.ts

@@ -7,11 +7,9 @@
  */
 
 import { Architect } from '@angular-devkit/architect/src/index2';
-import { runTargetSpec } from '@angular-devkit/architect/testing';
 import { join, normalize, virtualFs } from '@angular-devkit/core';
-import { tap } from 'rxjs/operators';
 import { BrowserBuilderOutput } from '../../src/browser';
-import { browserTargetSpec, createArchitect, host } from '../utils';
+import { createArchitect, host } from '../utils';
 
 
 describe('Browser Builder AOT', () => {

packages/angular_devkit/build_angular/test/browser/base-href_spec_large.ts

@@ -7,11 +7,9 @@
  */
 
 import { Architect } from '@angular-devkit/architect/src/index2';
-import { runTargetSpec } from '@angular-devkit/architect/testing';
 import { join, normalize, tags, virtualFs } from '@angular-devkit/core';
-import { tap } from 'rxjs/operators';
 import { BrowserBuilderOutput } from '../../src/browser';
-import { browserTargetSpec, createArchitect, host } from '../utils';
+import { createArchitect, host } from '../utils';
 
 
 describe('Browser Builder base href', () => {

packages/angular_devkit/build_angular/test/browser/tsconfig-paths_spec_large.ts

@@ -7,9 +7,7 @@
  */
 
 import { Architect } from '@angular-devkit/architect/src/index2';
-import { runTargetSpec } from '@angular-devkit/architect/testing';
-import { tap } from 'rxjs/operators';
-import { browserBuild, browserTargetSpec, createArchitect, host } from '../utils';
+import { browserBuild, createArchitect, host } from '../utils';
 
 
 describe('Browser Builder tsconfig paths', () => {

packages/angular_devkit/build_angular/test/browser/works_spec_large.ts

@@ -7,10 +7,8 @@
  */
 
 import { Architect } from '@angular-devkit/architect/src/index2';
-import { runTargetSpec } from '@angular-devkit/architect/testing';
-import { join, normalize } from '@angular-devkit/core';
-import { tap } from 'rxjs/operators';
-import { browserBuild, browserTargetSpec, createArchitect, host } from '../utils';
+import { normalize } from '@angular-devkit/core';
+import { browserBuild, createArchitect, host } from '../utils';
 
 
 describe('Browser Builder basic test', () => {