gnewspromokiller.user.js

// ==UserScript==
// @name     Remove annoying Hangouts promot 
// @include  https://news.google.com/*
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js
// ==/UserScript==



//var divPromo = document.evaluate('//div[@class="hangouts-promo"]', document, null, typeXPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue; 




function GM_wait() { 
  if (typeof jQuery == 'undefined') {
      alert(".");
      window.setTimeout(GM_wait,1000); 
  } else { 
    
    $ = jQuery; letsJQuery(); } 
}

alert("GM_wait ... ");

GM_wait();

function letsJQuery() { 
   var divPromo = $(".hangouts-promo");
   divPromo.remove();
  
 
}