Remove unused things from drivetrain_config.

Change-Id: Id90bcb2e70357c267d7680be6b4285c853120971
diff --git a/y2014/control_loops/drivetrain/drivetrain_base.cc b/y2014/control_loops/drivetrain/drivetrain_base.cc
index 1e18b68..e78fa22 100644
--- a/y2014/control_loops/drivetrain/drivetrain_base.cc
+++ b/y2014/control_loops/drivetrain/drivetrain_base.cc
@@ -20,14 +20,15 @@
       ::y2014::control_loops::drivetrain::MakeVelocityDrivetrainLoop,
       ::y2014::control_loops::drivetrain::MakeKFDrivetrainLoop,
 
-      drivetrain::kDt, drivetrain::kStallTorque, drivetrain::kStallCurrent,
-      drivetrain::kFreeSpeedRPM, drivetrain::kFreeCurrent, drivetrain::kJ,
-      drivetrain::kMass, drivetrain::kRobotRadius, drivetrain::kWheelRadius,
-      drivetrain::kR, drivetrain::kV, drivetrain::kT,
+      drivetrain::kDt,
+      drivetrain::kRobotRadius,
+      drivetrain::kWheelRadius,
+      drivetrain::kV,
 
       constants::GetValues().high_gear_ratio,
       constants::GetValues().low_gear_ratio,
-      constants::GetValues().left_drive, constants::GetValues().right_drive};
+      constants::GetValues().left_drive,
+      constants::GetValues().right_drive};
 
   return kDrivetrainConfig;
 };