It might be as simple as removing that option from the connect string. But please note this could have side effects on existing packages and/or reports, so TEST THOROUGHLY.
ConnectionString: ^User ID:^?Password:;LOCAL;JDBC;URL=jdbc:sybase:Tds:server:41...
ConnectionString: ^User ID:^?Password:;LOCAL;JDBC;URL=jdbc:sybase:Tds:server:41...