events: replace NodeCustomEvent with CustomEvent

PR-URL: nodejs#43876
Refs: nodejs#43514
Reviewed-By: Anna Henningsen <anna@addaleax.net>

lib/internal/event_target.js

@@ -408,15 +408,6 @@ ObjectDefineProperties(CustomEvent.prototype, {
   detail: kEnumerableProperty,
 });
 
-class NodeCustomEvent extends Event {
-  constructor(type, options) {
-    super(type, options);
-    if (options?.detail) {
-      this.detail = options.detail;
-    }
-  }
-}
-
 // Weak listener cleanup
 // This has to be lazy for snapshots to work
 let weakListenersState = null;
@@ -837,7 +828,7 @@ class EventTarget {
   }
 
   [kCreateEvent](nodeValue, type) {
-    return new NodeCustomEvent(type, { detail: nodeValue });
+    return new CustomEvent(type, { detail: nodeValue });
   }
   [customInspectSymbol](depth, options) {
     if (!isEventTarget(this))