perf: delete pre-view-engine core, compiler, platform-browser, etc code (#14788)

After the introduction of the view engine, we can drop a lot of code that is not used any more.

This should reduce the size of the app bundles because a lot of this code was not being properly tree-shaken by today's tools even though it was dead code.

modules/@angular/core/testing/mock_animation_player.ts

@@ -1,115 +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
- */
-import {AUTO_STYLE, AnimationPlayer} from '@angular/core';
-
-export class MockAnimationPlayer implements AnimationPlayer {
-  private _onDoneFns: Function[] = [];
-  private _onStartFns: Function[] = [];
-  private _onDestroyFns: Function[] = [];
-  private _finished = false;
-  private _destroyed = false;
-  private _started = false;
-
-  public parentPlayer: AnimationPlayer = null;
-  public previousStyles: {[styleName: string]: string | number} = {};
-
-  public log: any[] = [];
-
-  constructor(
-      public startingStyles: {[key: string]: string | number} = {},
-      public keyframes: Array<[number, {[style: string]: string | number}]> = [],
-      previousPlayers: AnimationPlayer[] = []) {
-    previousPlayers.forEach(player => {
-      if (player instanceof MockAnimationPlayer) {
-        const styles = player._captureStyles();
-        Object.keys(styles).forEach(prop => this.previousStyles[prop] = styles[prop]);
-      }
-    });
-  }
-
-  private _onFinish(): void {
-    if (!this._finished) {
-      this._finished = true;
-      this.log.push('finish');
-
-      this._onDoneFns.forEach(fn => fn());
-      this._onDoneFns = [];
-    }
-  }
-
-  init(): void { this.log.push('init'); }
-
-  onDone(fn: () => void): void { this._onDoneFns.push(fn); }
-
-  onStart(fn: () => void): void { this._onStartFns.push(fn); }
-
-  onDestroy(fn: () => void): void { this._onDestroyFns.push(fn); }
-
-  hasStarted() { return this._started; }
-
-  play(): void {
-    if (!this.hasStarted()) {
-      this._onStartFns.forEach(fn => fn());
-      this._onStartFns = [];
-      this._started = true;
-    }
-    this.log.push('play');
-  }
-
-  pause(): void { this.log.push('pause'); }
-
-  restart(): void { this.log.push('restart'); }
-
-  finish(): void { this._onFinish(); }
-
-  reset(): void {
-    this.log.push('reset');
-    this._destroyed = false;
-    this._finished = false;
-    this._started = false;
-  }
-
-  destroy(): void {
-    if (!this._destroyed) {
-      this._destroyed = true;
-      this.finish();
-      this.log.push('destroy');
-      this._onDestroyFns.forEach(fn => fn());
-      this._onDestroyFns = [];
-    }
-  }
-
-  setPosition(p: number): void {}
-  getPosition(): number { return 0; }
-
-  private _captureStyles(): {[styleName: string]: string | number} {
-    const captures: {[prop: string]: string | number} = {};
-
-    if (this.hasStarted()) {
-      // when assembling the captured styles, it's important that
-      // we build the keyframe styles in the following order:
-      // {startingStyles, ... other styles within keyframes, ... previousStyles }
-      Object.keys(this.startingStyles).forEach(prop => {
-        captures[prop] = this.startingStyles[prop];
-      });
-
-      this.keyframes.forEach(kf => {
-        const [offset, styles] = kf;
-        const newStyles: {[prop: string]: string | number} = {};
-        Object.keys(styles).forEach(
-            prop => { captures[prop] = this._finished ? styles[prop] : AUTO_STYLE; });
-      });
-    }
-
-    Object.keys(this.previousStyles).forEach(prop => {
-      captures[prop] = this.previousStyles[prop];
-    });
-
-    return captures;
-  }
-}

modules/@angular/core/testing/private_export_testing.ts

@@ -6,5 +6,4 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-export {MockAnimationPlayer as ɵMockAnimationPlayer} from './mock_animation_player';
 export {TestingCompiler as ɵTestingCompiler, TestingCompilerFactory as ɵTestingCompilerFactory} from './test_compiler';

modules/@angular/core/testing/testing_internal.ts

@@ -14,7 +14,6 @@ import {global} from './facade/lang';
 import {getTestBed, inject} from './test_bed';
 
 export {AsyncTestCompleter} from './async_test_completer';
-export {MockAnimationPlayer} from './mock_animation_player';
 export {inject} from './test_bed';
 
 export * from './logger';