如何从wordpress摘录中删除youtube链接

Question

currently the word press excerpt shows a youtube link if the post has a yuutube video inside.

I saw this code:

function remove_links($text) 
{
    if ('' == $text ) 
    {
        $pattern = '~http://[^\s]*~i'; //what we want to remove, the http link
        $text = get_the_content('');
        $text = preg_replace($pattern, '', $text);
    }
    return $text;
}
remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'remove_links');

It does remove the you-tube links from the excerpt but it adds a duplicate excerpt on top of the one that was there. Is there a way to simply the function to just scan the current excerpts and remove any you-tube links within them?

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