Removed done state from fridge

Change-Id: Ifb2b69b078f38b2533b8ac6ec73f1116146e6e94
diff --git a/aos/common/controls/control_loops.q b/aos/common/controls/control_loops.q
index 823005e..2b0bfb1 100644
--- a/aos/common/controls/control_loops.q
+++ b/aos/common/controls/control_loops.q
@@ -1,14 +1,10 @@
 package aos.control_loops;
 
-interface IsDone {
-  bool done;
-};
-
 interface ControlLoop {
   queue goal;
   queue position;
   queue output;
-  queue IsDone status;
+  queue status;
 };
 
 message Goal {