Unpublish sitemap paths when sitemaps are disabled or deleted.

Problem/Motivation

We unpublish content pages when nodes are deleted but not sitemap paths when the sitemaps are disabled or deleted.

Steps to reproduce

Proposed resolution

Unpublish sitemap paths when sitemaps are disabled or deleted.

Remaining tasks

• Update code
• Review and test
• Commit

User interface changes

Sitemaps will be unpublished when sitemaps are disabled or deleted in Drupal.

API changes

Data model changes