Use DynamoDBDocumentClient to send DeleteCommand for consistency (#7736)

* Update basic.js

Use DynamoDBDocumentClient to send DeleteCommand

* Update basic.js

---------

Co-authored-by: Brian Murray <40031786+brmur@users.noreply.github.com>

Author: imnomee

javascriptv3/example_code/dynamodb/scenarios/basic.js

@@ -162,7 +162,7 @@ export const main = async () => {
     TableName: tableName,
     Key: { year: 1981, title: "The Evil Dead" },
   });
-  await client.send(deleteCommand);
+  await docClient.send(deleteCommand);
   log("Movie deleted.");
 
   /**