Removed article since feature isn't released

Author: lenewsad

memdocs/intune/enrollment/enrollment-notifications.md

@@ -46,8 +46,6 @@ items:
   - name: Require multi-factor authentication  
     href: multi-factor-authentication.md
     displayName: mfa; multifactor   
-  - name: Set up enrollment notifications 
-    href: enrollment-notifications.md 
   - name: Set up Windows enrollment
     items:
     - name: Windows enrollment methods