Removes the closing bracket at the end of WordPress' oEmbed using YouTube.

functions.php

<?php

function remove_youtube_parenthesis ($html, $url ) {
    if ( preg_match('#https?://(www\.)?youtu#i', $url) ) {
        $html = preg_replace('/\)$/', '', $html);
    }

    return $html;
}

add_filter( 'oembed_result',     'remove_youtube_parenthesis ', 10, 2 );
add_filter( 'embed_oembed_html', 'remove_youtube_parenthesis ', 10, 2 );

yea updated it! thanks