function my_deregister_styles() {
    wp_deregister_style ( 'smoothness' );
    wp_deregister_style ( 'affiliates_admin' );
    wp_deregister_style ( 'affiliates_pro_admin' );
    wp_deregister_style ( 'affiliates_enterprise_admin' );

}
add_action( 'wp_print_styles', 'my_deregister_styles', 100 );