1)In the Snippets pod, select the snippet you want to delete and click Delete Selected Item.
2)Select one of the following options:
Delete The Snippet And Its References
Delete the snippet and its references across the topics, TOC, index, SSL, and templates. No warning is shown before the deletion.
note: Use the Snippets report to locate the variables you want to remove.
Delete Only The Snippet
Delete the contents of the snippet locally. For example, selecting a snippet in a TOC and deleting it with this option selected does not remove the contents of the snippet from the index.
Delete Snippet And Replace References With Actual Content
Delete the snippet and replace the references in the project with the contents.