Update how-to-connect-install-prerequisites.md

Author: RobdeJong

articles/active-directory/hybrid/how-to-connect-install-prerequisites.md

@@ -36,7 +36,6 @@ Before you install Azure AD Connect, there are a few things that you need.
 
 ### On-premises Active Directory
 * The Active Directory schema version and forest functional level must be Windows Server 2003 or later. The domain controllers can run any version as long as the schema version and forest-level requirements are met.
-* If you plan to use the feature *password writeback*, the domain controllers must be on Windows Server 2016 or later.
 * The domain controller used by Azure AD must be writable. Using a read-only domain controller (RODC) *isn't supported*, and Azure AD Connect doesn't follow any write redirects.
 * Using on-premises forests or domains by using "dotted" (name contains a period ".") NetBIOS names *isn't supported*.
 * We recommend that you [enable the Active Directory recycle bin](how-to-connect-sync-recycle-bin.md).