function deleteAttributes(username, password){
        var attributeList = [];
        attributeList.push("custom:scope");
        attributeList.push("name");

        var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails({
            Username: username,
            Password: password,
        });

        var userData = {
            Username: username,
            Pool: userPool
        };
        var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);

        cognitoUser.deleteAttributes(attributeList, (err, result) => {
            if (err) {
                //handle error
            } else {
                console.log(result);
            }
        });
}