Revert 175069

third_party/scrypt/lib/util/readpass.h

Index: third_party/scrypt/lib/util/readpass.h
===================================================================
--- third_party/scrypt/lib/util/readpass.h	(revision 175254)
+++ third_party/scrypt/lib/util/readpass.h	(working copy)
@@ -1,45 +0,0 @@
-/*-
- * Copyright 2009 Colin Percival
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * This file was originally written by Colin Percival as part of the Tarsnap
- * online backup system.
- */
-#ifndef _READPASS_H_
-#define _READPASS_H_
-
-/**
- * tarsnap_getpass(passwd, prompt, confirmprompt, devtty)
- * If ${devtty} is non-zero, read a password from /dev/tty if possible; if
- * not, read from stdin.  If reading from a tty (either /dev/tty or stdin),
- * disable echo and prompt the user by printing ${prompt} to stderr.  If
- * ${confirmprompt} is non-NULL, read a second password (prompting if a
- * terminal is being used) and repeat until the user enters the same password
- * twice.  Return the password as a malloced NUL-terminated string via
- * ${passwd}.  The obscure name is to avoid namespace collisions due to the
- * getpass / readpass / readpassphrase / etc. functions in various libraries.
- */
-int tarsnap_readpass(char **, const char *, const char *, int);
-
-#endif /* !_READPASS_H_ */