disable featured image on CPT

add_filter( 'theme_mod_jnews_single_show_featured', 'disable_featured_image_cpt' );

function disable_featured_image_cpt( $value ) {
    if ( is_single() && 'video' === get_post_type() ) { /* change video with your post type slug */
        return false;
    }
    return $value;
}