在Primefaces inputText required=true中，如何在输入内容后立即删除ui-state-error？

<p:inputText id="myInput" required="true" onkeyup="removeErrorState()" />

<script>
    function removeErrorState() {
        var input = document.getElementById('myInput');
        input.classList.remove('ui-state-error');
    }
</script>

<p:inputText id="myInput" required="true">
    <p:ajax event="keyup" oncomplete="removeErrorState()" />
</p:inputText>

<script>
    function removeErrorState() {
        var input = document.getElementById('myInput');
        input.classList.remove('ui-state-error');
    }
</script>