refactor(animations): remove outdated comment

This isn't necessary anymore.

Author: JeanMeche

packages/animations/browser/src/render/renderer.ts

@@ -10,10 +10,10 @@ const ANIMATION_PREFIX = '@';
 const DISABLE_ANIMATIONS_FLAG = '@.disabled';
 
 import {
+  ɵAnimationRendererType as AnimationRendererType,
   Renderer2,
   RendererFactory2,
   RendererStyleFlags2,
-  ɵAnimationRendererType as AnimationRendererType,
   type ListenerOptions,
 } from '@angular/core';
 import type {AnimationEngine} from './animation_engine_next';
@@ -23,9 +23,7 @@ type AnimationFactoryWithListenerCallback = RendererFactory2 & {
 };
 
 export class BaseAnimationRenderer implements Renderer2 {
-  // We need to explicitly type this property because of an api-extractor bug
-  // See https://github.com/microsoft/rushstack/issues/4390
-  readonly ɵtype: AnimationRendererType.Regular = AnimationRendererType.Regular;
+  readonly ɵtype = AnimationRendererType.Regular;
 
   constructor(
     protected namespaceId: string,