The below documentation shows the included drivers and data source templates for Information Services with Spotfire 14.0 LTS.
https://docs.tibco.com/pub/spotfire_server/latest/doc/html/TIB_sfire_server_tsas_admin_help/server/topics/included_drivers_and_data_source_templates_for_information_services.html When you upgrade from a previous (pre-14.0) version of Spotfire, it will still show you the DataDirect data source templates in the Configuration tool only for your reference to help with migration. However, during the upgrade, it will be disabled, and enabling it will not work because this driver class is not available from version 14.0 LTS.
Whereas, if you do a fresh install of Spotfire 14.0 LTS, then you will not see these DataDirect data source templates as they are now removed.