reorganizing toc

Author: khdownie

articles/storage/file-sync/TOC.yml

@@ -193,22 +193,16 @@
         href: ../common/transport-layer-security-configure-client-version.md?toc=%2fazure%2fstorage%2ffile-sync%2ftoc.json
   - name: Troubleshoot
     items:
-    - name: Troubleshoot Azure Files on Windows (SMB)
-      href: ../files/storage-troubleshoot-windows-file-connection-problems.md?toc=%2fazure%2fstorage%2ffile-sync%2ftoc.json
-    - name: Troubleshoot Azure file shares performance
-      href: ../files/storage-troubleshooting-files-performance.md?toc=%2fazure%2fstorage%2ffile-sync%2ftoc.json
     - name: Troubleshoot Azure File Sync
       href: file-sync-troubleshoot.md
-    - name: Troubleshoot installation and registration
+    - name: Troubleshoot agent installation and server registration
       href: file-sync-troubleshoot-installation.md
     - name: Troubleshoot sync group management
       href: file-sync-troubleshoot-sync-group-management.md
     - name: Troubleshoot sync issues
       href: file-sync-troubleshoot-sync-errors.md
-    - name: Troubleshoot cloud tiering
+    - name: Troubleshoot cloud tiering issues
       href: file-sync-troubleshoot-cloud-tiering.md
-    - name: Troubleshoot backing up file shares
-      href: ../../backup/troubleshoot-azure-files.md?toc=%2fazure%2fstorage%2ffile-sync%2ftoc.json
 - name: Reference
   items:
   - name: Azure Files reference