Revert change to unused _puppet_toc.html

File is an unused artifact from the original Puppet docs import;
removing it from the PR diff per reviewer feedback.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: miharp

docs/_openvox_8x/_puppet_toc.html

@@ -11,6 +11,7 @@ <h3 id="puppet-reference-manual">Puppet Platform reference manual</h3>
     * [Puppet known issues]({{puppet}}/known_issues.html)
     * [System requirements]({{puppet}}/system_requirements.html)
     * [Component versions in `puppet-agent`]({{puppet}}/about_agent.html)
+    * [Puppet agent release notes]({{puppet}}/release_notes_agent.html)
     * [Puppet Server {{ server_version }} release notes]({{puppetserver}}/release_notes.html)
     * [Facter release notes]({{facter}}/release_notes.html)
 * **Quick start guides**