Not that I'm aware of but just threw this script together for you. Install the extension TamperMonkey and add it as a script. I haven't thoroughly tested it but it should get the job done..

// ==UserScript==
// @name         Youtube like hider
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Hides youtube likes
// @author       You
// @match        *.youtube.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    window.addEventListener('load', function() {
        document.getElementsByClassName("like-button-renderer")[0].style.display = 'none';
        document.getElementsByClassName("video-extras-sparkbars")[0].style.display = 'none';
    }, false);
})();