Remove global .frc971.control_loops.drivetrain_queue object

Change-Id: I424f09dcc8bc210e49cbdc805d1a423a72332617
diff --git a/y2017/control_loops/superstructure/superstructure.h b/y2017/control_loops/superstructure/superstructure.h
index e387cf2..660b861 100644
--- a/y2017/control_loops/superstructure/superstructure.h
+++ b/y2017/control_loops/superstructure/superstructure.h
@@ -43,6 +43,8 @@
 
  private:
   ::aos::Fetcher<::y2017::vision::VisionStatus> vision_status_fetcher_;
+  ::aos::Fetcher<::frc971::control_loops::DrivetrainQueue::Status>
+      drivetrain_status_fetcher_;
 
   hood::Hood hood_;
   intake::Intake intake_;