Revert "Adopt setTimeout0() which doesn't suffer from the 4ms artif…

…icial delay that browsers set when the nesting level is > 5. (#149723)" (#149742)

This reverts commit 2c97c80.

src/vs/base/test/common/timeTravelScheduler.ts

@@ -5,7 +5,6 @@
 
 import { Emitter, Event } from 'vs/base/common/event';
 import { Disposable, IDisposable } from 'vs/base/common/lifecycle';
-import { setTimeout0 } from 'vs/base/common/platform';
 
 interface PriorityQueue<T> {
 	length: number;
@@ -179,7 +178,7 @@ export class AsyncSchedulerProcessor extends Disposable {
 			if (this.useSetImmediate) {
 				originalGlobalValues.setImmediate(() => this.process());
 			} else {
-				setTimeout0(() => this.process());
+				originalGlobalValues.setTimeout(() => this.process());
 			}
 		});
 	}