twitch-hide-annoyances.user.js

// ==UserScript==
// @name         Hide Twitch Annoyances
// @namespace    http://twitch.tv
// @version      1.5
// @description  hides bits/subs/promos/shop
// @author       Viller
// @match        *://*.twitch.tv/*
// @grant        none
// ==/UserScript==

const style = document.createElement('style');
style.innerHTML = `
[data-a-target*="bits"],
[data-target*="bits"],
[data-a-target*="subscribe"],
[data-target*="subscribe"],
[data-a-target*="live"],
[data-target*="live"],
[data-a-target*="prime"],
[data-target*="prime"],
.top-nav__prime,
.front-page-carousel,
.pinned-cheer-v2,
.upsell-banner {
    display: none;
}

.video-player__container.player {
    bottom: 0;
}

.pl-controls-top,
.pl-controls-bottom {
    background: transparent;
}
`.replace(/;/gi, ' !important;');


document.documentElement.appendChild(style);