diff --git a/arch/platform/cooja/sys/cooja_mt.c b/arch/platform/cooja/sys/cooja_mt.c
index 3ccc5c169..ca0d79303 100644
--- a/arch/platform/cooja/sys/cooja_mt.c
+++ b/arch/platform/cooja/sys/cooja_mt.c
@@ -46,18 +46,6 @@
 
 static struct cooja_mt_thread *current;
 
-/*--------------------------------------------------------------------------*/
-void
-cooja_mt_init(void)
-{
-  cooja_mtarch_init();
-}
-/*--------------------------------------------------------------------------*/
-void
-cooja_mt_remove(void)
-{
-  cooja_mtarch_remove();
-}
 /*--------------------------------------------------------------------------*/
 void
 cooja_mt_start(struct cooja_mt_thread *thread, void (* function)(void *), void *data)
@@ -82,14 +70,6 @@ cooja_mt_exec(struct cooja_mt_thread *thread)
 }
 /*--------------------------------------------------------------------------*/
 void
-cooja_mt_exit(void)
-{
-  current->state = MT_STATE_EXITED;
-  current = NULL;
-  cooja_mtarch_yield();
-}
-/*--------------------------------------------------------------------------*/
-void
 cooja_mt_yield(void)
 {
   current->state = MT_STATE_READY;
diff --git a/arch/platform/cooja/sys/cooja_mt.h b/arch/platform/cooja/sys/cooja_mt.h
index 4707b1fff..f9138c6dd 100644
--- a/arch/platform/cooja/sys/cooja_mt.h
+++ b/arch/platform/cooja/sys/cooja_mt.h
@@ -49,25 +49,6 @@
  */
 struct cooja_mtarch_thread;
 
-/**
- * Initialize the architecture specific support functions for the
- * multi-thread library.
- *
- * This function is implemented by the architecture specific functions
- * for the multi-thread library and is called by the mt_init()
- * function as part of the initialization of the library. The
- * mtarch_init() function can be used for, e.g., starting preemtion
- * timers or other architecture specific mechanisms required for the
- * operation of the library.
- */
-void cooja_mtarch_init(void);
-
-/**
- * Uninstall library and clean up.
- *
- */
-void cooja_mtarch_remove(void);
-
 /**
  * Setup the stack frame for a thread that is being started.
  *
@@ -128,19 +109,6 @@ struct cooja_mt_thread {
  */
 #define MT_OK 1
 
-/**
- * Initializes the multithreading library.
- *
- */
-void cooja_mt_init(void);
-
-/**
- * Uninstalls library and cleans up.
- *
- */
-void cooja_mt_remove(void);
-
-
 /**
  * Starts a multithreading thread.
  *
@@ -201,51 +169,6 @@ void cooja_mt_exec(struct cooja_mt_thread *thread);
  */
 void cooja_mt_yield(void);
 
-/**
- * Post an event to another process.
- *
- * This function is called by a running thread and will emit a signal
- * to another Contiki process. This will cause the currently executing
- * thread to yield.
- *
- * \param p The process receiving the signal, or PROCESS_BROADCAST
- * for a broadcast event.
- *
- * \param ev The event to be posted.
- *
- * \param data A pointer to a message that is to be delivered together
- * with the signal.
- *
- */
-/*void mt_post(struct process *p, process_event_t ev, process_data_t data);*/
-
-/**
- * Block and wait for an event to occur.
- *
- * This function can be called by a running thread in order to block
- * and wait for an event. The function returns when an event has
- * occured. The event number and the associated data are placed in the
- * variables pointed to by the function arguments.
- *
- * \param ev A pointer to a process_event_t variable. The variable
- * will be filled with the number event that woke the thread.
- *
- * \param data A pointer to a process_data_t variable. The variable
- * will be filled with the data associated with the event that woke
- * the thread.
- *
- */
-/*void mt_wait(process_event_t *ev, process_data_t *data);*/
-
-/**
- * Exit a thread.
- *
- * This function is called from within an executing thread in order to
- * exit the thread. The function never returns.
- *
- */
-void cooja_mt_exit(void);
-
 /** @} */
 /** @} */
 #endif /* MT_H_ */
diff --git a/arch/platform/cooja/sys/cooja_mtarch.c b/arch/platform/cooja/sys/cooja_mtarch.c
index 8d73ad088..4a1f78360 100644
--- a/arch/platform/cooja/sys/cooja_mtarch.c
+++ b/arch/platform/cooja/sys/cooja_mtarch.c
@@ -72,11 +72,7 @@ struct frame {
   unsigned long retaddr2;
   unsigned long data;
 };
-/*--------------------------------------------------------------------------*/
-void
-cooja_mtarch_init(void)
-{
-}
+
 /*--------------------------------------------------------------------------*/
 void
 cooja_mtarch_start(struct cooja_mtarch_thread *t,
@@ -187,35 +183,8 @@ cooja_mtarch_exec(struct cooja_mtarch_thread *t)
 }
 /*--------------------------------------------------------------------------*/
 void
-cooja_mtarch_remove(void)
-{
-}
-/*--------------------------------------------------------------------------*/
-void
 cooja_mtarch_yield(void)
 {
   cooja_sw();
 }
 /*--------------------------------------------------------------------------*/
-void
-cooja_mtarch_pstop(void)
-{
-}
-/*--------------------------------------------------------------------------*/
-void
-cooja_mtarch_pstart(void)
-{
-}
-/*--------------------------------------------------------------------------*/
-int
-cooja_mtarch_stack_usage(struct cooja_mt_thread *t)
-{
-  int i;
-  for(i = 0; i < COOJA_MTARCH_STACKSIZE; ++i) {
-    if(t->thread.stack[i] != i) {
-      return COOJA_MTARCH_STACKSIZE - i;
-    }
-  }
-  return -1;
-}
-/*--------------------------------------------------------------------------*/
diff --git a/arch/platform/cooja/sys/cooja_mtarch.h b/arch/platform/cooja/sys/cooja_mtarch.h
index 084962e81..2a16c0ae4 100644
--- a/arch/platform/cooja/sys/cooja_mtarch.h
+++ b/arch/platform/cooja/sys/cooja_mtarch.h
@@ -46,7 +46,4 @@ struct cooja_mtarch_thread {
 
 struct cooja_mt_thread;
 
-int cooja_mtarch_stack_usage(struct cooja_mt_thread *t);
-
 #endif /* COOJA_MTARCH_H_ */
-