Add second transfer roller motor

Still use same behavior of always sending opposite voltages

Signed-off-by: Milind Upadhyay <milind.upadhyay@gmail.com>
Change-Id: If6bcf617db37b40924556d59dcfa23e7d43bdef1
diff --git a/y2022/constants.h b/y2022/constants.h
index 494ca3d..865a0e6 100644
--- a/y2022/constants.h
+++ b/y2022/constants.h
@@ -108,18 +108,11 @@
   static constexpr double kIntakeRollerStatorCurrentLimit() { return 60.0; }
 
   // Transfer rollers
-  // Positive voltage means front transfer rollers pull in and back spits out,
-  // and vice versa
-  static constexpr double kTransferRollerFrontVoltage() { return 12.0; }
-  static constexpr double kTransferRollerBackVoltage() {
-    return -kTransferRollerFrontVoltage();
-  }
+  static constexpr double kTransferRollerVoltage() { return 12.0; }
 
   // Voltage to wiggle the transfer rollers and keep a ball in.
-  static constexpr double kTransferRollerFrontWiggleVoltage() { return 3.0; }
-  static constexpr double kTransferRollerBackWiggleVoltage() {
-    return -kTransferRollerFrontWiggleVoltage();
-  }
+  static constexpr double kTransferRollerWiggleVoltage() { return 3.0; }
+
   // Minimum roller speed when the intake is slightly out
   static constexpr double kMinIntakeSlightlyOutRollerSpeed() { return 6.0; }
   // Roller speeds when intake is out