Cleanup imports in utility.test.ts

Author: Seongjae Choi

test/utility.test.ts

@@ -4,9 +4,9 @@ import {
  getAccountIdFromPrivate,
  getAccountIdFromPublic,
  getPublicFromPrivate,
- toHex
+ toHex,
+ toLocaleString
 } from "..";
-import { toLocaleString } from "../lib/utility";
 
 test.each([
  [[0x00, 0x01, 0x02], "000102"],