Removing Unused WP SEO Codes display on html page [duplicate]

Emoji is a new feature added to WordPress 4.2 core and has nothing to do with your WP SEO code. You can remove these by using this removing action in functions.php

Code Update – Christine Cooper’s answer here: Disable Emojis deals with all Emoji content throughout the site.

function disable_wp_emojicons() {
  // all actions related to emojis
  remove_action( 'admin_print_styles', 'print_emoji_styles' );
  remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
  remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
  remove_action( 'wp_print_styles', 'print_emoji_styles' );
  remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
  remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
  remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );

// filter to remove TinyMCE emojis
add_filter( 'tiny_mce_plugins', 'disable_emojicons_tinymce' );
 }
add_action( 'init', 'disable_wp_emojicons' );

or use this plugin: Disable Emojis