[cleanup] delete dead code leftover from 48eff34

src/array.js

Index: src/array.js
diff --git a/src/array.js b/src/array.js
index 12d2b4c22ae73127236c6e3c189a1e4eec7bf888..806a3faaa947affbad46b4bc24f70175441678f9 100644
--- a/src/array.js
+++ b/src/array.js
@@ -361,7 +361,7 @@ function ArrayToString() {
     func = array.join;
   }
   if (!IS_SPEC_FUNCTION(func)) {
-    return %_CallFunction(array, DefaultObjectToString);
+    return %_CallFunction(array, ObjectToString);
   }
   return %_CallFunction(array, func);
 }