var steem = require('steem');

var username = 'jpederson96';
var password = 'master password';

var ownerKey = steem.auth.getPrivateKeys(username, password, ['owner']).owner;

steem.api.getAccounts([username], function(err, response){

     if (response) {
       var account = response[0];
       var activeAuth = account.active;
       var postingAuth = account.posting;
       var ownerAuth = account.owner;
       var memoKey = account.memo_key;

       postingAuth.account_auths = [];

       steem.broadcast.accountUpdate(ownerKey, username, ownerAuth, activeAuth,
           postingAuth, memoKey, account.json_metadata, function(err, result) {
           	console.log(err,result);
       });
     } else {
		   console.log(err)
     }
});