Removed example from answer.js for the third problem

Author: ustacode

daily-coding-problem/03/answer.js

@@ -9,18 +9,6 @@ function serialize(root) {
   return `${root.val} ${left} ${right}`;
 }
 
-const x = (
-  new Node('7',
-    new Node('2',
-      new Node('1')
-    ),
-    new Node('5',
-      new Node('3'),
-      new Node('8')
-    )
-  )
-);
-
 function deserialize(str) {
   let index = 0;
   const tokens = str.split(" ");