message: refactor(platform-browser): Remove ViewEncapsulation.Native warning
  ViewEncapsulation.Native has been dropped in v11, let's remove this warning.
  PR Close
diff: @@ -75,8 +75,6 @@ function decoratePreventDefault(eventHandler: Function): Function {
  };
  }
  -let hasLoggedNativeEncapsulationWarning = false;
  -
  @Injectable()
  export class DomRendererFactory2 implements RendererFactory2 {
  private rendererByCompId = new Map<string, Renderer2>();
  @@ -103,21 +101,7 @@ export class DomRendererFactory2 implements RendererFactory2 {
  (<EmulatedEncapsulationDomRenderer2>renderer).applyToHost(element);
  return renderer;
  }
  - // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an enum
  - // value that is not known (but previously was the value for ViewEncapsulation.Native)
  - case 1:
  case ViewEncapsulation.ShadowDom:
  - // TODO(FW-2290): remove the `case 1:` fallback logic and the warning in v12.
  - if ((typeof ngDevMode === 'undefined' || ngDevMode) &&
  - // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an
  - // enum value that is not known (but previously was the value for
  - // ViewEncapsulation.Native)
  - !hasLoggedNativeEncapsulationWarning && type.encapsulation === 1) {
  - hasLoggedNativeEncapsulationWarning = true;
  - console.warn(
  - 'ViewEncapsulation.Native is no longer supported. Falling back to ViewEncapsulation.ShadowDom. The fallback will be removed in v12.');
  - }
  -
  return new ShadowDomRenderer(this.eventManager, this.sharedStylesHost, element, type);
  default: {
  if (!this.rendererByCompId.has(type.id)) {
  