Remove toc entry for parent page not yet in main

Author: nastasha-solomon

explore-analyze/toc.yml

@@ -380,20 +380,6 @@ toc:
           - file: report-and-share/reporting-troubleshooting-pdf.md
   - file: alerting.md
     children:
-      - file: alerting/kibana-alerting-experimental.md
-        children:
-          - file: alerting/kibana-alerting-experimental/rules.md
-            children:
-              - file: alerting/kibana-alerting-experimental/rules/author-rules.md
-              - file: alerting/kibana-alerting-experimental/rules/esql-query-patterns.md
-              - file: alerting/kibana-alerting-experimental/rules/create-rule-from-rule-builder.md
-              - file: alerting/kibana-alerting-experimental/rules/create-rule-from-discover.md
-              - file: alerting/kibana-alerting-experimental/rules/create-rule-with-yaml.md
-                children:
-                  - file: alerting/kibana-alerting-experimental/rules/yaml-rule-schema-reference.md
-              - file: alerting/kibana-alerting-experimental/rules/configure-a-rule.md
-              - file: alerting/kibana-alerting-experimental/rules/view-manage-rules.md
-              - file: alerting/kibana-alerting-experimental/rules/rule-event-field-reference.md
       - file: alerting/alerts.md
         children:
           - file: alerting/alerts/alerting-getting-started.md