RemoveFacebookGamingPanel.js

const isXPathLoaded = async path => {
      while ( getElementByXpath(path) === null) {
        await new Promise( resolve => requestAnimationFrame(resolve) )
      }
      return getElementByXpath(path);
    };

function getElementByXpath(path) {
  return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}

function removeSidePanel() {
    let xpaths = [
      "/html/body/div[1]/div/div[1]/div/div[3]/div/div/div/div[1]/div[1]/div/div/div/div/div[2]",
    ];
    xpaths.forEach((path) => isXPathLoaded(path).then(element => element.remove())) 
}