Remove note about requiring 'Owner' RBAC role

This PR removes a note that stated, incorrectly, that principals accessing the PowerShell cmdlets and therefore the AAS API must belong to the 'Owner' Azure RBAC role. This change was requested by Christian Wade from the AAS team.

Author: johndowns

articles/analysis-services/analysis-services-addservprinc-admins.md

@@ -14,9 +14,6 @@ ms.custom: fasttrack-edit
 # Add a service principal to the server administrator role 
 
  To automate unattended PowerShell tasks, a service principal must have **server administrator** privileges on the Analysis Services server being managed. This article describes how to add a service principal to the server administrators role on an Azure AS server. You can do this using SQL Server Management Studio or a Resource Manager template.
- 
-> [!NOTE]
-> For server operations using Azure PowerShell cmdlets, the service principal must also belong to the **Owner** role for the resource in [Azure Role-Based Access Control (RBAC)](../role-based-access-control/overview.md). 
 
 ## Before you begin
 Before completing this task, you must have a service principal registered in Azure Active Directory.