Swap y2024 drivetrain to use ConstantsFetcher

Simultaneously, remove the line following configuration from the y2024
drivetrain, since that code will not be relevant to this year.

Change-Id: I536bd2dd18080bbaae5d83cb151bbd2353d7896c
Signed-off-by: James Kuszmaul <jabukuszmaul+collab@gmail.com>
diff --git a/y2024/control_loops/drivetrain/drivetrain_main.cc b/y2024/control_loops/drivetrain/drivetrain_main.cc
index 196fbb7..e0b2eb7 100644
--- a/y2024/control_loops/drivetrain/drivetrain_main.cc
+++ b/y2024/control_loops/drivetrain/drivetrain_main.cc
@@ -22,10 +22,10 @@
       localizer = std::make_unique<
           ::frc971::control_loops::drivetrain::PuppetLocalizer>(
           &event_loop,
-          ::y2024::control_loops::drivetrain::GetDrivetrainConfig());
+          ::y2024::control_loops::drivetrain::GetDrivetrainConfig(&event_loop));
   std::unique_ptr<DrivetrainLoop> drivetrain = std::make_unique<DrivetrainLoop>(
-      y2024::control_loops::drivetrain::GetDrivetrainConfig(), &event_loop,
-      localizer.get());
+      y2024::control_loops::drivetrain::GetDrivetrainConfig(&event_loop),
+      &event_loop, localizer.get());
 
   event_loop.Run();