<? 
function links_remove () {
    $args = array ('numberposts' => 9999);
        $allposts = get_posts( $args );
        foreach( $allposts as $post ) {
            $id = $post->ID;
            $content = $post->post_content;
            $links_mass=array(
            'www.evro-posuda.ru/',
            'ostrovok.ru/hotel/czech_republic/prague/id10305/hotel_askania/'
            );
            foreach($links_mass as $link) {
            $pattern = '/<a.*href="http:\/\/' . preg_quote($link, '/') . '>.*<\/a>';
            $new_content = preg_replace ($pattern, "", $content);
        }   
        
        $new_post = array();
        $new_post['ID'] = $id;
        $new_post['post_content'] = $new_content;
        wp_update_post( $new_post );
    }
}
add_action ('init', 'links_remove');

?>