Cacher is the code snippet organizer for pro developers

<?php 
function wpb_imagelink_setup() {
    $image_set = get_option( 'image_default_link_type' );
    if ($image_set !== 'none') {
        update_option('image_default_link_type', 'none');
    }
}
add_action('admin_init', 'wpb_imagelink_setup', 10);

// ИЛИ

add_action('template_redirect', 'template_redirect_attachment');
 function template_redirect_attachment() {
 global $post;
 // Перенаправление на основную запись:
 if (is_attachment()) {
 wp_redirect(get_permalink($post->post_parent));
 }
 }  
 
 /* ИЛИ htaccess
 RewriteRule (.+)/attachment /$1 [R=301,L]
 RewriteCond %{QUERY_STRING} ^attachment_id= [NC]
 RewriteRule (.*) $1? [R=301,L]  
 */
 ?>