The name of the SQL Server login, server role, or msdb database role to remove access for. name is nvarchar(256) with no default.
[ @proxy_id= ] id
The id of the proxy to remove access for. Either id or proxy_name must be specified, but both cannot be specified. The id is int, with a default of NULL.
[ @proxy_name= ] 'proxy_name'
The name of the proxy to remove access for. Either id or proxy_name must be specified, but both cannot be specified. The proxy_name is sysname, with a default of NULL.