Remove element event listeners through base component (#33429)

After some research, I found out that EventHandler saves all the custom events per element using namespace, and is capable of removing handlers using only the element and its namespace (`DATA_KEY`).

So, probably is better to utilize the base-component to do the same job.

js/src/modal.js

@@ -187,7 +187,7 @@ class Modal extends BaseComponent {
   }
 
   dispose() {
-    [window, this._element, this._dialog]
+    [window, this._dialog]
       .forEach(htmlElement => EventHandler.off(htmlElement, EVENT_KEY))
 
     super.dispose()