https://v2.steemconnect.com/sign/delegateVestingShares?delegator=alanzheng&delegatee=esteem.utp&vesting_shares=0.000000%20VESTS
将上面的代码复制到浏览器的地址栏中，将delegator换成自己的帐号。delegatee换成要委派的对象。
确认帐号和密码就可以取消委派。
Copy above code into browser's address bar, just replace delegator and delegatee to yours, after confirm your account and key, the undelegate will success.