Wordpress functions I.

/*  use these inside your (child!)theme functions.php   */

/*      Remove useless links from the header (Visual Composer included!)        */
function removeHeadLinks() {
    remove_action('wp_head', 'feed_links_extra', 3 );
    remove_action('wp_head', 'feed_links', 2 );
    remove_action('wp_head', 'rsd_link' );
    remove_action('wp_head', 'wlwmanifest_link' );
    remove_action('wp_head', 'index_rel_link' );
    remove_action('wp_head', 'parent_post_rel_link', 10, 0 );
    remove_action('wp_head', 'start_post_rel_link', 10, 0 );
    remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0 );
    remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);
    remove_action('wp_head', 'wp_generator' );

/*  Use this only if you have VC installed  */
    remove_action('wp_head', array(visual_composer(), 'addMetaData'));
}
add_action('init', 'removeHeadLinks');


/*      Remove version numbers after css, js files      */
function removeWpVerCssJs( $src ) {
    if ( strpos( $src, 'ver=' ) )
        $src = remove_query_arg( 'ver', $src );
    return $src;
}
add_filter('style_loader_src', 'removeWpVerCssJs', 9999 );
add_filter('script_loader_src', 'removeWpVerCssJs', 9999 );


/*      Remove revolution slider meta       */
function removeRevsliderMeta() {
    return '';
}
add_filter('revslider_meta_generator', 'removeRevsliderMeta');

/*      Force disable comments      */
function removeCommentSupport() {
    remove_post_type_support( 'post', 'comments' );
    remove_post_type_support( 'page', 'comments' );
}
add_action('init', 'removeCommentSupport', 100);

/*      Remove the Admin Bar (you know how annoying this can be)        */
show_admin_bar(false);

/*      Remove emoji junk from the header   */
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_action('admin_print_styles', 'print_emoji_styles' );

/*      Yoast: Some extras like remove og:images from the header        */
function removeOpenGraphImages($val) {
    return preg_replace("/<img[^>]+\>/i", "", $val);
}
add_filter('wpseo_pre_analysis_post_content', 'removeOpenGraphImages');
add_filter('wpseo_og_article_published_time', '__return_false' );
add_filter('wpseo_og_article_modified_time', '__return_false' );
add_filter('wpseo_og_og_updated_time', '__return_false' );