SQL Server Database Engine
Cannot drop Subscriber '%s'. There are subscriptions for it in the publication database '%s'.
A SQL Server instance that is configured as a Subscriber cannot be removed from the role of Subscriber while there are active subscriptions configured for the instance.
Drop all associated subscriptions before attempting to change the Subscriber status of the SQL Server instance:
Execute sp_helpsubscription (Transact-SQL) in the publication database at the Publisher to find subscriptions.
Execute sp_dropsubscription (Transact-SQL) in the publication database to drop subscriptions.