test: remove duplicated test for eventtarget

PR-URL: #37853
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-eventtarget.js

@@ -256,13 +256,6 @@ let asyncTest = Promise.resolve();
     {},  // No handleEvent function
     false
   ].forEach((i) => throws(() => target.addEventListener('foo', i), err(i)));
-
-  [
-    'foo',
-    1,
-    {},  // No handleEvent function
-    false
-  ].forEach((i) => throws(() => target.addEventListener('foo', i), err(i)));
 }
 
 {