Revert "chore(dialog): switch to OnPush change detection (angular#5422)"

This reverts commit cf071c7.

Author: andrewseguin

src/lib/dialog/dialog-container.ts

@@ -16,8 +16,6 @@ import {
   EventEmitter,
   Inject,
   Optional,
-  ChangeDetectionStrategy,
-  ChangeDetectorRef,
 } from '@angular/core';
 import {
   animate,
@@ -51,7 +49,6 @@ export function throwMdDialogContentAlreadyAttachedError() {
   selector: 'md-dialog-container, mat-dialog-container',
   templateUrl: 'dialog-container.html',
   styleUrls: ['dialog.css'],
-  changeDetection: ChangeDetectionStrategy.OnPush,
   encapsulation: ViewEncapsulation.None,
   animations: [
     trigger('slideDialog', [
@@ -107,7 +104,6 @@ export class MdDialogContainer extends BasePortalHost {
     private _ngZone: NgZone,
     private _elementRef: ElementRef,
     private _focusTrapFactory: FocusTrapFactory,
-    private _changeDetectorRef: ChangeDetectorRef,
     @Optional() @Inject(DOCUMENT) _document: any) {
 
     super();
@@ -124,12 +120,7 @@ export class MdDialogContainer extends BasePortalHost {
     }
 
     this._savePreviouslyFocusedElement();
-    const componentRef = this._portalHost.attachComponentPortal(portal);
-
-    // Ensure that the initial view change are picked up.
-    componentRef.changeDetectorRef.markForCheck();
-
-    return componentRef;
+    return this._portalHost.attachComponentPortal(portal);
   }
 
   /**
@@ -142,12 +133,7 @@ export class MdDialogContainer extends BasePortalHost {
     }
 
     this._savePreviouslyFocusedElement();
-    const locals = this._portalHost.attachTemplatePortal(portal);
-
-    // Ensure that the initial view change are picked up.
-    this._changeDetectorRef.markForCheck();
-
-    return locals;
+    return this._portalHost.attachTemplatePortal(portal);
   }
 
   /** Moves the focus inside the focus trap. */