Converted hood to only need an index pulse.

We now have a more complicated seek mechanism which runs the hood to
each hard stop, or until we find both index pulses.

Change-Id: I9932cc158beec0bc55dc0e908accb0aea6a73506
diff --git a/y2017/constants.h b/y2017/constants.h
index 1ad582b..5305367 100644
--- a/y2017/constants.h
+++ b/y2017/constants.h
@@ -39,7 +39,7 @@
 
   struct Hood {
     double pot_offset;
-    ::frc971::constants::PotAndIndexPulseZeroingConstants zeroing;
+    ::frc971::constants::EncoderPlusIndexZeroingConstants zeroing;
   };
 
   static const int kZeroingSampleSize = 200;