Hooks in 2.0.1

How do I use hooks to remove the Product Description, Description tab, and Reviews tab from individual products? I used to use this code:

// Remove related products
remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_related_products', 20);
// Remove product tab, reviews, and description
remove_action( 'woocommerce_product_tabs', 'woocommerce_product_description_tab', 10 );
remove_action( 'woocommerce_product_tabs', 'woocommerce_product_reviews_tab', 30 );
remove_action( 'woocommerce_product_tab_panels', 'woocommerce_product_description_panel', 10 );
remove_action( 'woocommerce_product_tab_panels', 'woocommerce_product_reviews_panel', 30 );

When I updated to the most recent version, that code no longer works. Here’s an example product from my site: http://artfusion19464.org/shop/classes-for-kids/crafty-kids-ages-7-12-with-julie-tonnessen/

http://wordpress.org/extend/plugins/woocommerce/