Revert "disable create/delete/update (Azure#9950)" (Azure#9993)

This reverts commit bd1854c.

Author: changlong-liu

specification/guestconfiguration/resource-manager/readme.az.md

@@ -17,7 +17,5 @@ cli:
             prop: 'properties'
           flatten: true
 
-        - where:
-            op: 'CreateOrUpdate#Create|Delete|CreateOrUpdate#Update'
-          hidden: true
+
 ```