subscribe button broken by new yt-smartimation element

[TorutheRedFox]

quick fix:

setInterval(function() {
    var newParent = document.getElementsByTagName("ytd-subscribe-button-renderer")[0];
    var oldParent = newParent.getElementsByTagName("yt-smartimation")[0];

    while (oldParent.childNodes.length > 0) {
        newParent.appendChild(oldParent.childNodes[0]);
    }
}, 100);