--- Libc/Libc-1244.1.7/include/string.h
+++ Libc/Libc-1158.1.2/include/string.h
@@ -174,10 +174,6 @@
 
 /* SUS places swab() in unistd.h.  It is listed here for source compatibility */
 void	 swab(const void * __restrict, void * __restrict, ssize_t);
-
-__OSX_AVAILABLE(10.12.1) __IOS_AVAILABLE(10.1)
-__TVOS_AVAILABLE(10.0.1) __WATCHOS_AVAILABLE(3.1)
-int	timingsafe_bcmp(const void *__b1, const void *__b2, size_t __len);
 __END_DECLS
 
 /* Some functions historically defined in string.h were placed in strings.h