Remove WP CPT Child-Theme http://wordpress.stackexchange.com/questions/3820/deregister-custom-post-types

remove _cpt_wp_child_theme.php

if ( ! function_exists( 'unregister_post_type' ) ) :
function unregister_post_type() {
    global $wp_post_types;
    if ( isset( $wp_post_types[ 'expose' ] ) ) {
        unset( $wp_post_types[ 'expose' ] );
        return true;
    }
    return false;
}
endif;

add_action('init', 'unregister_post_type');