Fix features.h inclusion gone wrong

Author: grynspan

Sources/_TestingInternals/Stubs.cpp

@@ -26,11 +26,6 @@
 
 #include "Stubs.h"
 
-#include <features.h>
-
-#if defined(__linux__) || defined(__FreeBSD__)
-#endif
-
 #if defined(__linux__)
 int swt_pthread_setname_np(pthread_t thread, const char *name) {
   return pthread_setname_np(thread, name);