deprecation: delete left over UpdateStream func
deprecation: delete left over UpdateStream func

Signed-off-by: Sugu Sougoumarane <b9023a093a3fde2f5ed7cdf696263add90aef9db@gmail.com>

vitessio/vitess,vitessio/vitess,tinyspeck/vitess,tinyspeck/vitess,vitessio/vitess,tinyspeck/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess