Remove extra blank line in toc.yml

Co-authored-by: Copilot <[email protected]>

Author: umamaheshmsft

articles/microsoft-discovery/toc.yml

@@ -176,7 +176,6 @@ items:
           - name: Manage storage containers
             href: how-to-manage-storage-containers.md
             displayName: Microsoft Discovery, storage containers, storage assets, blob storage, data ingestion
- 
       - name: Investigations & Discovery Mode
         items:
           - name: Build investigations with cognition