It's a veryvery simple js for deleting various documents you send to kindle by email. Just open the https://www.amazon.com/gp/digital/fiona/manage#All And open chrome console, copy/paste the js code in it then click your enter key. It will auto delete the 15 items on the page.

Amazon-Personal-Documents-Deleter.js

for (var i=1;i<16;i++){
  document.getElementById("actionSelect"+i).click();
  document.getElementById("deleteLink_"+i).click();
  document.getElementsByClassName("ap_custom_close")[0].click();
}