Revert "Add note resource to Mail TOC"

This reverts commit 4d6bbcc.

Author: Rajesh Vulla

api-reference/beta/toc/mail/toc.yml

@@ -204,28 +204,6 @@ items:
     href: ../../api/messagetracingroot-list-messagetraces.md
   - name: Get details by recipient
     href: ../../api/exchangemessagetrace-getdetailsbyrecipient.md
-- name: Note (preview)
-  items:
-  - name: Note (preview)
-    href: ../../resources/note.md
-  - name: List notes
-    href: ../../api/user-list-notes.md
-  - name: Create note
-    href: ../../api/user-post-notes.md
-  - name: Get note
-    href: ../../api/note-get.md
-  - name: Update note
-    href: ../../api/note-update.md
-  - name: Delete note
-    href: ../../api/note-delete.md
-  - name: Get delta
-    href: ../../api/note-delta.md
-  - name: Attachments
-    items:
-    - name: List attachments
-      href: ../../api/note-list-attachments.md
-    - name: Create attachment
-      href: ../../api/note-post-attachments.md
 - name: User configuration (preview)
   items:
   - name: User configuration (preview)