Disable Emojis in WordPress 4.2+ For a Faster Page Load
As of WordPress 4.2, a new feature was introduced that allows you to use the new emojis. While on some WordPress setups are useful, in many situations, especially when you are not using WordPress as a blog, you just don’t need them and the file /wp-includes/js/wp-emoji-release.min.js is loaded along with extra inline JavaScript code.