diff --git a/crypto/bio/file.c b/crypto/bio/file.c
index 9e29b43..b903bc2 100644
--- a/crypto/bio/file.c
+++ b/crypto/bio/file.c
@@ -87,47 +87,11 @@
 #define BIO_FP_WRITE 0x04
 #define BIO_FP_APPEND 0x08
 
-static FILE *open_file(const char *filename, const char *mode) {
-#if defined(OPENSSL_WINDOWS) && defined(CP_UTF8)
-  int sz, len_0 = (int)strlen(filename) + 1;
-  DWORD flags;
-
-  /* Basically there are three cases to cover: a) filename is pure ASCII
-   * string; b) actual UTF-8 encoded string and c) locale-ized string, i.e. one
-   * containing 8-bit characters that are meaningful in current system locale.
-   * If filename is pure ASCII or real UTF-8 encoded string,
-   * MultiByteToWideChar succeeds and _wfopen works. If filename is locale-ized
-   * string, chances are that MultiByteToWideChar fails reporting
-   * ERROR_NO_UNICODE_TRANSLATION, in which case we fall back to fopen... */
-  if ((sz = MultiByteToWideChar(CP_UTF8, (flags = MB_ERR_INVALID_CHARS),
-                                filename, len_0, NULL, 0)) > 0 ||
-      (GetLastError() == ERROR_INVALID_FLAGS &&
-       (sz = MultiByteToWideChar(CP_UTF8, (flags = 0), filename, len_0, NULL,
-                                 0)) > 0)) {
-    WCHAR wmode[8];
-    WCHAR *wfilename = _alloca(sz * sizeof(WCHAR));
-
-    if (MultiByteToWideChar(CP_UTF8, flags, filename, len_0, wfilename, sz) &&
-        MultiByteToWideChar(CP_UTF8, 0, mode, strlen(mode) + 1, wmode,
-                            sizeof(wmode) / sizeof(wmode[0])) &&
-        (file = _wfopen(wfilename, wmode)) == NULL &&
-        (errno == ENOENT ||
-         errno == EBADF)) /* UTF-8 decode succeeded, but no file, filename
-                           * could still have been locale-ized... */
-      return fopen(filename, mode);
-  } else if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION) {
-    return fopen(filename, mode);
-  }
-#else
-  return fopen(filename, mode);
-#endif
-}
-
 BIO *BIO_new_file(const char *filename, const char *mode) {
   BIO *ret;
   FILE *file;
 
-  file = open_file(filename, mode);
+  file = fopen(filename, mode);
   if (file == NULL) {
     OPENSSL_PUT_SYSTEM_ERROR();
 
@@ -256,7 +220,7 @@
         ret = 0;
         break;
       }
-      fp = open_file(ptr, p);
+      fp = fopen(ptr, p);
       if (fp == NULL) {
         OPENSSL_PUT_SYSTEM_ERROR();
         ERR_add_error_data(5, "fopen('", ptr, "','", p, "')");