Remove dead header file.

There's nothing in here.

Change-Id: I3a501389e7e237b2e6907f27d2eb788a298d6c03
Reviewed-on: https://boringssl-review.googlesource.com/6877
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/dsa/dsa.c b/crypto/dsa/dsa.c
index aaa763f..979079d 100644
--- a/crypto/dsa/dsa.c
+++ b/crypto/dsa/dsa.c
@@ -72,7 +72,6 @@
 #include <openssl/sha.h>
 #include <openssl/thread.h>
 
-#include "internal.h"
 #include "../internal.h"
 
 
diff --git a/crypto/dsa/dsa_asn1.c b/crypto/dsa/dsa_asn1.c
index d7b826c..7615fca 100644
--- a/crypto/dsa/dsa_asn1.c
+++ b/crypto/dsa/dsa_asn1.c
@@ -61,7 +61,6 @@
 #include <openssl/err.h>
 #include <openssl/mem.h>
 
-#include "internal.h"
 #include "../bytestring/internal.h"
 
 
diff --git a/crypto/dsa/dsa_test.c b/crypto/dsa/dsa_test.c
index 8bdaaf4..6296c8f 100644
--- a/crypto/dsa/dsa_test.c
+++ b/crypto/dsa/dsa_test.c
@@ -65,8 +65,6 @@
 #include <openssl/crypto.h>
 #include <openssl/err.h>
 
-#include "internal.h"
-
 
 static int dsa_cb(int p, int n, BN_GENCB *arg);
 
diff --git a/crypto/dsa/internal.h b/crypto/dsa/internal.h
deleted file mode 100644
index ef99158..0000000
--- a/crypto/dsa/internal.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- *
- * The DSS routines are based on patches supplied by
- * Steven Schoch <schoch@sheba.arc.nasa.gov>. */
-
-#ifndef OPENSSL_HEADER_DSA_INTERNAL_H
-#define OPENSSL_HEADER_DSA_INTERNAL_H
-
-#include <openssl/base.h>
-
-#include <openssl/bn.h>
-#include <openssl/ex_data.h>
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-
-
-#if defined(__cplusplus)
-}  /* extern C */
-#endif
-
-#endif  /* OPENSSL_HEADER_DSA_INTERNAL_H */
diff --git a/crypto/evp/p_dsa_asn1.c b/crypto/evp/p_dsa_asn1.c
index bb68d20..9f97b16 100644
--- a/crypto/evp/p_dsa_asn1.c
+++ b/crypto/evp/p_dsa_asn1.c
@@ -64,7 +64,6 @@
 #include <openssl/obj.h>
 #include <openssl/x509.h>
 
-#include "../dsa/internal.h"
 #include "internal.h"