Revert "fortify: allow diagnostics without run-time checks"

This reverts commit d7e11b88531665de59de466bbc9ee6c480b00a4f.

Reason for revert: Breaks aosp_x86_64-eng. Will look into it and
unbreak when it's not almost midnight. :)

Change-Id: I21f76efe4d19c70d0b14630e441376d359a45b49
diff --git a/libc/include/bits/fortify/strings.h b/libc/include/bits/fortify/strings.h
index 1ebaf39..cc268db 100644
--- a/libc/include/bits/fortify/strings.h
+++ b/libc/include/bits/fortify/strings.h
@@ -33,13 +33,13 @@
         __overloadable
         __clang_error_if(__bos_unevaluated_lt(__bos0(dst), len),
                          "'bcopy' called with size bigger than buffer") {
-#if __ANDROID_API__ >= __ANDROID_API_J_MR1__ && __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED
+#if __ANDROID_API__ >= __ANDROID_API_J_MR1__
     size_t bos = __bos0(dst);
     if (!__bos_trivially_ge(bos, len)) {
         __builtin___memmove_chk(dst, src, len, bos);
         return;
     }
-#endif
+#endif /* __ANDROID_API__ >= __ANDROID_API_J_MR1__ */
     __builtin_memmove(dst, src, len);
 }
 
@@ -48,13 +48,13 @@
         __overloadable
         __clang_error_if(__bos_unevaluated_lt(__bos0(b), len),
                          "'bzero' called with size bigger than buffer") {
-#if __ANDROID_API__ >= __ANDROID_API_J_MR1__ && __BIONIC_FORTIFY_RUNTIME_CHECKS_ENABLED
+#if __ANDROID_API__ >= __ANDROID_API_J_MR1__
     size_t bos = __bos0(b);
     if (!__bos_trivially_ge(bos, len)) {
         __builtin___memset_chk(b, 0, len, bos);
         return;
     }
-#endif
+#endif /* __ANDROID_API__ >= __ANDROID_API_J_MR1__ */
     __builtin_memset(b, 0, len);
 }