How to: Remove WordPress 4.2 Emoji code

When you update to WordPress 4.2 you’ll notice some extraneous code in the header of your site.

If this extra code annoys you as much as it does me, you can remove it by adding these 2 lines to your theme functions:

// WP 4.2 REMOVE EMOJI HEADER JUNK
remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );

OR use this plugin:
https://wordpress.org/plugins/disable-emojis/

Also add this to remove the DNS Prefetch:

add_filter('emoji_svg_url', '__return_false');