[wpilibc] Remove unused SetPriority() call from Ultrasonic (#4123)

wpilibc/src/main/native/cpp/Ultrasonic.cpp

@@ -120,11 +120,6 @@ void Ultrasonic::SetAutomaticMode(bool enabling) {
     }
 
     m_thread = std::thread(&Ultrasonic::UltrasonicChecker);
-
-    // TODO: Currently, lvuser does not have permissions to set task priorities.
-    // Until that is the case, uncommenting this will break user code that calls
-    // Ultrasonic::SetAutomicMode().
-    // m_task.SetPriority(kPriority);
   } else {
     // Wait for background task to stop running
     if (m_thread.joinable()) {

wpilibc/src/main/native/include/frc/Ultrasonic.h

@@ -167,9 +167,6 @@ class Ultrasonic : public wpi::Sendable,
   // Time (sec) for the ping trigger pulse.
   static constexpr double kPingTime = 10 * 1e-6;
 
-  // Priority that the ultrasonic round robin task runs.
-  static constexpr int kPriority = 64;
-
   // Max time (ms) between readings.
   static constexpr auto kMaxUltrasonicTime = 0.1_s;
   static constexpr auto kSpeedOfSound = 1130_fps;