Removed global y2018 SuperstructureQueue object

Change-Id: I95a9c7e1a200ea957d0a7285409fc709f773ad71
diff --git a/y2018/control_loops/superstructure/superstructure.q b/y2018/control_loops/superstructure/superstructure.q
index 19fbc05..049a406 100644
--- a/y2018/control_loops/superstructure/superstructure.q
+++ b/y2018/control_loops/superstructure/superstructure.q
@@ -120,6 +120,7 @@
   double voltage_rollers;
 };
 
+// Published on ".y2018.control_loops.superstructure_queue"
 queue_group SuperstructureQueue {
   implements aos.control_loops.ControlLoop;
 
@@ -219,5 +220,3 @@
   queue Status status;
   queue Position position;
 };
-
-queue_group SuperstructureQueue superstructure_queue;