Remove pdp_values queue.

Switch to event loops (kinda)

Change-Id: Ia1334871715321f99f12015a771414a236221cb6
diff --git a/y2014_bot3/wpilib_interface.cc b/y2014_bot3/wpilib_interface.cc
index 397fafe..8d7ddb2 100644
--- a/y2014_bot3/wpilib_interface.cc
+++ b/y2014_bot3/wpilib_interface.cc
@@ -279,7 +279,7 @@
     JoystickSender joystick_sender(&event_loop);
     ::std::thread joystick_thread(::std::ref(joystick_sender));
 
-    ::frc971::wpilib::PDPFetcher pdp_fetcher;
+    ::frc971::wpilib::PDPFetcher pdp_fetcher(&event_loop);
     ::std::thread pdp_fetcher_thread(::std::ref(pdp_fetcher));
 
     // TODO(comran): IO ports are placeholders at the moment, so match them to