diff --git a/libraries/AP_HAL_Empty/Scheduler.cpp b/libraries/AP_HAL_Empty/Scheduler.cpp
index 25969d7f13..f0b344d730 100644
--- a/libraries/AP_HAL_Empty/Scheduler.cpp
+++ b/libraries/AP_HAL_Empty/Scheduler.cpp
@@ -28,12 +28,6 @@ void Scheduler::register_io_process(AP_HAL::MemberProc k)
 void Scheduler::register_timer_failsafe(AP_HAL::Proc, uint32_t period_us)
 {}
 
-void Scheduler::suspend_timer_procs()
-{}
-
-void Scheduler::resume_timer_procs()
-{}
-
 void Scheduler::system_initialized()
 {}
 
diff --git a/libraries/AP_HAL_Empty/Scheduler.h b/libraries/AP_HAL_Empty/Scheduler.h
index 9ab159d191..70dde7fd6b 100644
--- a/libraries/AP_HAL_Empty/Scheduler.h
+++ b/libraries/AP_HAL_Empty/Scheduler.h
@@ -10,8 +10,6 @@ public:
     void     delay_microseconds(uint16_t us);
     void     register_timer_process(AP_HAL::MemberProc);
     void     register_io_process(AP_HAL::MemberProc);
-    void     suspend_timer_procs();
-    void     resume_timer_procs();
 
     void     register_timer_failsafe(AP_HAL::Proc, uint32_t period_us);