SF_10.1, SF_10.2, SF_11.0, SF_11.1, SF_11.2, SF_12.0, SF_12.1, SF_12.2, SF_13.0, SF_13.1, SF_13.2, SF_13.3, SF_14.0, SF_14.1, SF_14.2, SF_14.3 - https://docs.sitefinity.com/for-developers-delete-products

DeleteProduct.cs

using System;
using Telerik.Sitefinity.Ecommerce.Catalog.Model;
using Telerik.Sitefinity.Modules.Ecommerce.Catalog;

namespace Telerik.Sitefinity.Documentation.CodeSnippets.SitefinityEssentials.Modules.Ecommerce.Products
{
    public partial class ProductsCodeSnippets
    {
        public static void DeleteProduct(Guid productId)
        {
            CatalogManager catalogManager = CatalogManager.GetManager();

            Product product = catalogManager.GetProduct(productId);

            if (product != null)
            {
                catalogManager.DeleteItem(product, null);
                catalogManager.SaveChanges();
            }
        }
    }
}