Merge pull request #5804 from EdB-MSFT/fix-alerts-toc

fix toc for alerts

Author: EdB-MSFT

defender-xdr/TOC.yml

@@ -102,7 +102,6 @@
           href: move-alert-to-another-incident.md
         - name: Merge incidents manually
           href: merge-incidents-manually.md
-        - name: Alerts
         - name: Investigate alerts
           href: investigate-alerts.md
         - name: Investigate entity pages