Removed more redundant compatibility stuff from timer

include/internal/catch_timer.h

@@ -8,11 +8,8 @@
 #ifndef TWOBLUECUBES_CATCH_TIMER_H_INCLUDED
 #define TWOBLUECUBES_CATCH_TIMER_H_INCLUDED
 
-#include "catch_platform.h"
-
 #include <stdint.h>
 
-
 namespace Catch {
     class Timer {
     public: