remove fortify source and fortify level options

Author: zimirza

libc/hdr/localtime_overlay.h

@@ -19,48 +19,24 @@
 // functions, causing external alias errors.  They are guarded by
 // `__USE_EXTERN_INLINES` macro.  We temporarily disable `__USE_EXTERN_INLINES`
 // macro by defining `__NO_INLINE__` before including <stdio.h>.
-// And the same with `__USE_FORTIFY_LEVEL`, which will be temporarily disabled
-// with `_FORTIFY_SOURCE`.
-
-#ifdef _FORTIFY_SOURCE
-#define LIBC_OLD_FORTIFY_SOURCE _FORTIFY_SOURCE
-#undef _FORTIFY_SOURCE
-#endif
 
 #ifdef __USE_EXTERN_INLINES
 #define LIBC_OLD_USE_EXTERN_INLINES
 #undef __USE_EXTERN_INLINES
 #endif
 
-#ifdef __USE_FORTIFY_LEVEL
-#define LIBC_OLD_USE_FORTIFY_LEVEL __USE_FORTIFY_LEVEL
-#undef __USE_FORTIFY_LEVEL
-#define __USE_FORTIFY_LEVEL 0
-#endif
-
 #ifndef __NO_INLINE__
 #define __NO_INLINE__ 1
 #define LIBC_SET_NO_INLINE
 #endif
 
 #include <localtime.h>
 
-#ifdef LIBC_OLD_FORTIFY_SOURCE
-#define _FORTIFY_SOURCE LIBC_OLD_FORTIFY_SOURCE
-#undef LIBC_OLD_FORTIFY_SOURCE
-#endif
-
 #ifdef LIBC_SET_NO_INLINE
 #undef __NO_INLINE__
 #undef LIBC_SET_NO_INLINE
 #endif
 
-#ifdef LIBC_OLD_USE_FORTIFY_LEVEL
-#undef __USE_FORTIFY_LEVEL
-#define __USE_FORTIFY_LEVEL LIBC_OLD_USE_FORTIFY_LEVEL
-#undef LIBC_OLD_USE_FORTIFY_LEVEL
-#endif
-
 #ifdef LIBC_OLD_USE_EXTERN_INLINES
 #define __USE_EXTERN_INLINES
 #undef LIBC_OLD_USE_EXTERN_INLINES