itemID: The item ID (integer) of the item to be deleted. The item ID must match an existing item in Location Awareness Services for WebSphere Sensor Events.
lastUpdateTime: This String has the format: yyyy-mm-dd hh:mm:ss.fffffffff. You can get this by creating the object, LasItem, using the viewItemById method. The object, LasItem, offers a method calls getLastUpdateTime().
locale: If you want to set the default value, you have to input null. See Localization and input parameters for more information about the locale descriptor.
The output from the Web service is the item ID.