Starting Release 8.2, Zephyr Enterprise documentation has moved from its current location on Atlassian to a dedicated, standalone Zephyr Enterprise Documentation page. Please see: https://support.smartbear.com/zephyr-enterprise/docs/en/zephyr-enterprise/zephyr-user-guide/zephyr-test-automation/parser-templates/create,-edit-and-delete-templates/delete-parser-templates.html
To delete a parser template, send this API request to your Zephyr server:
DELETE http(s)://{your-zephyr}/flex/services/rest/latest/parsertemplate/{template-id}
Here --
your-zephyr is the host name or IP address of your Zephyr instance.
template-id is the ID of the desired template. You get this ID when you created a template.
Note: Pre-configured templates cannot be deleted.