WooCommerce Support to a Custom Theme

functions_wp_woo.php

<?php
// ----------------------------------------------------
// WooCommerce Additions to functions.php in WordPress
// ----------------------------------------------------

// Theme support. Removes warning message in admin.
add_theme_support( 'woocommerce' );

// Removing tabs and replace with simple product description (removes "Reviews" etc)
remove_action( 'woocommerce_after_single_product_summary', 'woocommerce_output_product_data_tabs', 10 ); 
function woocommerce_template_product_description() {
	woocommerce_get_template( 'single-product/tabs/description.php' );
}
add_action( 'woocommerce_single_product_summary', 'woocommerce_template_product_description', 20 );