Deletes the specified object from the object it's contained in.
expression An expression that returns a Discussion or DiscussionServer object.
When you use the Delete method to remove a discussion item from a DiscussionServer object, any replies to the discussion item are automatically promoted to the level of the deleted item.
This example deletes the third discussion item from the Discussions collection. Any discussions that are descendants of the affected discussion are promoted to the level of the deleted item.