Delete a document in DynamoDB, identified by hash-and-range primary key,
using the specified configs.

C# |
public Document DeleteItem( Primitive hashKey, Primitive rangeKey, DeleteItemOperationConfig config )

- hashKey (Primitive)
- Hash key element of the document.
- rangeKey (Primitive)
- Range key element of the document.
- config (DeleteItemOperationConfig)
- Configuration to use.

Null or old attributes, depending on config.