Remove Tools and APIs Observability page (#1068)

Author: mdbirnstiehl

solutions/observability/tools-and-apis.md

@@ -441,7 +441,6 @@ toc:
               - file: observability/incident-management/create-an-slo.md
       - file: observability/data-set-quality-monitoring.md
       - file: observability/observability-ai-assistant.md
-      - file: observability/tools-and-apis.md
   - file: security.md
     children:
       - file: security/elastic-security-serverless.md