diff --git a/include/utils/Timers.h b/include/utils/Timers.h
index 9610399..9a9e07c 100644
--- a/include/utils/Timers.h
+++ b/include/utils/Timers.h
@@ -88,9 +88,6 @@
 nsecs_t systemTime(int clock);
 #endif // def __cplusplus
 
-// return the system-time according to the specified clock
-int sleepForInterval(long interval, struct timeval* pNextTick);
-
 #ifdef __cplusplus
 } // extern "C"
 #endif
@@ -108,15 +105,15 @@
  */
 class DurationTimer {
 public:
-    DurationTimer(void) {}
-    ~DurationTimer(void) {}
+    DurationTimer() {}
+    ~DurationTimer() {}
 
     // Start the timer.
-    void start(void);
+    void start();
     // Stop the timer.
-    void stop(void);
+    void stop();
     // Get the duration in microseconds.
-    long long durationUsecs(void) const;
+    long long durationUsecs() const;
 
     // Subtract two timevals.  Returns the difference (ptv1-ptv2) in
     // microseconds.