Fix MAC build. No longer needs to include malloc.h.

Change-Id: I5544688b2155a1b30ca04204605b7b9f18c7633a
diff --git a/include/ELFSymbol.h b/include/ELFSymbol.h
index 92dc3c7..d78ba5a 100644
--- a/include/ELFSymbol.h
+++ b/include/ELFSymbol.h
@@ -25,11 +25,6 @@
 #include <string>
 #include <algorithm>
 
-#ifdef MACOSX
-#include <malloc/malloc.h>
-#else
-#include <malloc.h>
-#endif
 #include <stdint.h>
 #include <stdlib.h>