Remove Gnulib explicit_bzero module

It’s no longer needed, as it is now merely a thin layer around
C23-style memset_explicit and we might as well just call the
C23 standard function; that’s more forward-looking.
* admin/merge-gnulib (GNULIB_MODULES):
Remove explicit_bzero, and add memset_explicit.
* lib/explicit_bzero.c, m4/explicit_bzero.m4:
Remove these files, which were copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* src/gnutls.c (gnutls_symmetric_aead):
Use memset_explicit instead of explicit_bzero.

1 files changed, 0 insertions, 27 deletions

diff --git a/lib/explicit_bzero.c b/lib/explicit_bzero.c
deleted file mode 100644
index fc309f81d61..00000000000
--- a/lib/explicit_bzero.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Erasure of sensitive data, generic implementation.
-   Copyright (C) 2016-2022 Free Software Foundation, Inc.
-
-   This file is free software: you can redistribute it and/or modify
-   it under the terms of the GNU Lesser General Public License as
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-#include <string.h>
-
-/* Set LEN bytes of S to 0.  The compiler will not delete a call to
-   this function, even if S is dead after the call.  */
-void
-explicit_bzero (void *s, size_t len)
-{
-  memset_explicit (s, 0, len);
-}