force all loops to handle not having goals

Change-Id: I630f98d3b373f4c5e8fc6dec589dd5b077a9a391
diff --git a/frc971/control_loops/fridge/fridge.h b/frc971/control_loops/fridge/fridge.h
index eecfe1b..87dbfa4 100644
--- a/frc971/control_loops/fridge/fridge.h
+++ b/frc971/control_loops/fridge/fridge.h
@@ -40,7 +40,7 @@
 };
 
 class Fridge
-    : public aos::controls::ControlLoop<control_loops::FridgeQueue, false> {
+    : public aos::controls::ControlLoop<control_loops::FridgeQueue> {
  public:
   explicit Fridge(
       control_loops::FridgeQueue *fridge_queue = &control_loops::fridge_queue);