Fix errors.

Author: kareltucek

device/src/thread_stats.h

@@ -17,17 +17,10 @@
 
 // Functions:
 
-#if DEBUG_THREAD_STATS
     void ThreadStats_Init(void);
     void ThreadStats_Switch(void);
     void ThreadStats_Print(void);
     void ThreadStats_Snap(void);
-#else
-    #define ThreadStats_Init()
-    #define ThreadStats_Switch()
-    #define ThreadStats_Print()
-    #define ThreadStats_Snap()
-#endif
 
 #endif