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diff --git a/cpukit/sapi/include/rtems/counter.h b/cpukit/sapi/include/rtems/counter.h
deleted file mode 100644
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--- a/cpukit/sapi/include/rtems/counter.h
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@@ -1,160 +0,0 @@
-/**
- * @file
- *
- * @ingroup ClassicCounter
- * 
- * @brief Free-Running Counter and Busy Wait Delay API
- */
-
-/*
- * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
- *
- *  embedded brains GmbH
- *  Dornierstr. 4
- *  82178 Puchheim
- *  Germany
- *  <rtems@embedded-brains.de>
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifndef _RTEMS_SAPI_COUNTER_H
-#define _RTEMS_SAPI_COUNTER_H
-
-#include <rtems/score/cpu.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/**
- * @defgroup ClassicCounter Free-Running Counter and Busy Wait Delay
- *
- * @ingroup ClassicRTEMS
- *
- * @brief Free-running counter and busy wait delay functions.
- *
- * The RTEMS counter is some free-running counter.  It ticks usually with a
- * frequency close to the CPU or system bus clock.
- *
- * The counter can be used in case the overhead of the
- * rtems_clock_get_uptime_nanoseconds() is too high.  The step from counter
- * ticks to/from nanoseconds is explicit in this API unlike to
- * rtems_clock_get_uptime_nanoseconds() which performs the conversion on each
- * invocation.
- *
- * This counter works without a clock driver and during system initialization.
- *
- * The counter can be used to profile low-level operations like SMP locks or
- * interrupt disabled critical sections.  The counter can act also as an
- * entropy source for a random number generator. 
- *
- * The period of the counter depends on the actual hardware.
- *
- * @{
- */
-
-/**
- * @brief Unsigned integer type for counter values.
- */
-typedef CPU_Counter_ticks rtems_counter_ticks;
-
-/**
- * @brief Reads the current counter values.
- *
- * @return The current counter values.
- */
-static inline rtems_counter_ticks rtems_counter_read( void )
-{
-  return _CPU_Counter_read();
-}
-
-/**
- * @brief Returns the difference between the second and first CPU counter
- * value.
- *
- * This operation may be carried out as a modulo operation depending on the
- * range of the CPU counter device.
- *
- * @param[in] second The second CPU counter value.
- * @param[in] first The first CPU counter value.
- *
- * @return Returns second minus first modulo counter period.
- */
-static inline rtems_counter_ticks rtems_counter_difference(
-  rtems_counter_ticks second,
-  rtems_counter_ticks first
-)
-{
-  return _CPU_Counter_difference( second, first );
-}
-
-/**
- * @brief Converts counter ticks into nanoseconds.
- *
- * @param[in] ticks Some counter ticks.
- *
- * @return The nanoseconds corresponding to the counter ticks.  The value is
- * rounded up.
- */
-uint64_t rtems_counter_ticks_to_nanoseconds(
-  rtems_counter_ticks ticks
-);
-
-/**
- * @brief Converts nanoseconds into counter ticks.
- *
- * @param[in] nanoseconds Some nanoseconds.
- *
- * @return The counter ticks corresponding to the nanoseconds.  The value is
- * rounded up.
- */
-rtems_counter_ticks rtems_counter_nanoseconds_to_ticks(
-  uint32_t nanoseconds
-);
-
-/**
- * @brief Initializes the counter ticks to/from nanoseconds converter functions.
- *
- * This function must be used to initialize the
- * rtems_counter_ticks_to_nanoseconds() and
- * rtems_counter_nanoseconds_to_ticks() functions.  It should be called during
- * system initialization by the board support package.
- *
- * @param[in] frequency The current counter frequency in Hz.
- */
-void rtems_counter_initialize_converter( uint32_t frequency );
-
-/**
- * @brief Busy wait for some counter ticks.
- *
- * This function does not disable interrupts.  Thus task switches and
- * interrupts can interfere with this busy wait may prolong the delay.  This
- * function busy waits at least the specified time.  Due to some overhead the
- * actual delay may be longer.
- *
- * @param[in] ticks The minimum busy wait time in counter ticks.
- */
-void rtems_counter_delay_ticks( rtems_counter_ticks ticks );
-
-/**
- * @brief Busy wait for some nanoseconds.
- *
- * This function does not disable interrupts.  Thus task switches and
- * interrupts can interfere with this busy wait may prolong the delay.  This
- * function busy waits at least the specified time.  Due to some overhead the
- * actual delay may be longer.
- *
- * @param[in] nanoseconds The minimum busy wait time in nanoseconds.
- */
-void rtems_counter_delay_nanoseconds( uint32_t nanoseconds );
-
-/** @} */
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* _RTEMS_SAPI_COUNTER_H */