Remove pdp_values queue.

Switch to event loops (kinda)

Change-Id: Ia1334871715321f99f12015a771414a236221cb6
diff --git a/frc971/wpilib/pdp_values.q b/frc971/wpilib/pdp_values.q
index bda1c49..4c326ab 100644
--- a/frc971/wpilib/pdp_values.q
+++ b/frc971/wpilib/pdp_values.q
@@ -1,11 +1,10 @@
 package frc971;
 
 // Values retrieved from the PDP.
+// Published on ".frc971.pdp_values"
 message PDPValues {
   double voltage;
   double temperature;
   double power;
   double[16] currents;
 };
-
-queue PDPValues pdp_values;