Remove woo widgets

function remove_woo_widgets() {
  unregister_widget( 'WC_Widget_Recent_Products' );
  unregister_widget( 'WC_Widget_Featured_Products' );
  unregister_widget( 'WC_Widget_Product_Categories' );
  unregister_widget( 'WC_Widget_Product_Tag_Cloud' );
  unregister_widget( 'WC_Widget_Cart' );
  unregister_widget( 'WC_Widget_Layered_Nav' );
  unregister_widget( 'WC_Widget_Layered_Nav_Filters' );
  unregister_widget( 'WC_Widget_Price_Filter' );
  unregister_widget( 'WC_Widget_Product_Search' );
  unregister_widget( 'WC_Widget_Top_Rated_Products' );
  unregister_widget( 'WC_Widget_Recent_Reviews' );
  unregister_widget( 'WC_Widget_Recently_Viewed' );
  unregister_widget( 'WC_Widget_Best_Sellers' );
  unregister_widget( 'WC_Widget_Onsale' );
  unregister_widget( 'WC_Widget_Random_Products' );
}
add_action( 'widgets_init', 'remove_woo_widgets' );