There are 35 previous versions of this script.
// ==UserScript==
// @name Google Crap Killer
// @version 3.0.6
// @namespace http://userscripts.org/scripts/show/110554
// @description Annihilates Preview, Plus One and some scripts
// @include http://google.tld/*
// @include http://www.google.tld/*
// @include http://groups.google.tld/*
// @include http://encrypted.google.tld/*
// @include https://google.tld/*
// @include https://www.google.tld/*
// @include https://groups.google.tld/*
// @include https://encrypted.google.tld/*
// ==/UserScript==
// Remove PlusOne, Preview, Ads, most scripts
var shareClasses = ['esw eswd eswh','esw eswd esws','esw eswd','eswd','mbEnd','rhsa','tads','vspb','vspi','vspib','xjsc','xjsd','xjsi','vsc vsta','c rhsvw'];
for (var i=0;i<shareClasses.length;i++)
{
var googlegarbage = document.evaluate('//*[contains(@class, "'+shareClasses[i]+'")]', document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
for (var j = 0; j < googlegarbage.snapshotLength; j++) {
googlegarbage.snapshotItem(j).parentNode.removeChild(googlegarbage.snapshotItem(j));
}
}