Remove stray zerobytes

zerobytes.c

@@ -1,14 +0,0 @@
-/*
-This code was taken from the SPHINCS reference implementation.
-Public domain.
-*/
-
-#include "zerobytes.h"
-
-unsigned char *zerobytes(unsigned char *r,unsigned long long n)
-{
-  volatile unsigned char *p=r;
-  while (n--)
-    *(p++) = 0;
-  return r;
-}

zerobytes.h

@@ -1,6 +0,0 @@
-#ifndef ZEROBYTES_H
-#define ZEROBYTES_H
-
-unsigned char *zerobytes(unsigned char *r,unsigned long long n);
-
-#endif