Remove duplicate mapping (#784)

Prefer [the D&M
page](https://github.com/elastic/docs-content/blob/main/deploy-manage/deploy/cloud-enterprise/search-filter-deployments.md)
rather than the troubleshooting page. We have intentionally duplicated
content in the troubleshooting section (for now).

see
#778 (comment)

Author: marciw

troubleshoot/deployments/cloud-enterprise/cloud-enterprise.md

@@ -2,7 +2,6 @@
 navigation_title: "Elastic Cloud Enterprise"
 mapped_urls:
   - https://www.elastic.co/guide/en/cloud-enterprise/current/ece-troubleshooting.html
-  - https://www.elastic.co/guide/en/cloud-enterprise/current/ece-find.html
 ---
 
 # Troubleshoot Elastic Cloud Enterprise