function plt_hide_woo_like_for_jp_ec_metaboxes() {
$screen = get_current_screen();
if ( !$screen ) {
return;
}
//Hide the "Mail Setting Field" meta box.
remove_meta_box('mail_setting', $screen->id, 'side');
//Hide the "Send Mail" meta box.
remove_meta_box('check_email_before_send', $screen->id, 'side');
}
add_action('add_meta_boxes', 'plt_hide_woo_like_for_jp_ec_metaboxes', 20);