Console script to bulk remove "Watch Later" videos on YouTube (requires old layout)

bulkRemoveWLVideos.js

// Old view in WL: https://www.youtube.com/playlist?list=WL&disable_polymer=true
var timer = window.setInterval(function() {
  var videoDeleteButton = document.querySelector('.pl-video-edit-remove')
  if (videoDeleteButton) {
    videoDeleteButton.click()
    setTimeout(function() {
      document.querySelector('.yt-uix-load-more').click()
    }, 5000)
  } else {
    window.clearInterval(timer)
  }
}, 1000)