Delete a content block with the Native API

using System;
using System.Linq;
using Telerik.Sitefinity.GenericContent.Model;
using Telerik.Sitefinity.Modules.GenericContent;

namespace SitefinityWebApp
{
   public class DeleteContentBlockNativeAPI
   {
       public void DeleteContentItemNative(Guid masterContentItemId)
       {
           ContentManager manager = ContentManager.GetManager();

           // Get the master version of the item.
           ContentItem contentItem = manager.GetContent().Where(cI => cI.Id == masterContentItemId).FirstOrDefault();

           if (contentItem != null)
           {
               // Mark the item to be deleted.
               manager.Delete(contentItem);

               // Save the changes.
               manager.SaveChanges();
           }
       }
   }
}