Revert "KQL jobs, summary rules, and search jobs"

This reverts commit 0aa1fdd.

Author: EdB-MSFT

articles/sentinel/TOC.yml

@@ -16,8 +16,6 @@
     href: microsoft-sentinel-defender-portal.md
 - name: Data lake exploration
   items:  
-  - name: KQL jobs, Summary rules and Search jobs
-    href: datalake/kql-jobs-summary-rules-search-jobs.md
   - name: KQL for data lake exploration
     items:
     - name: Overview