Updated usrsctp to latest version with fixes upstream. Fixed usrsctp gyp file; removed overides.

third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h

Index: third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h
diff --git a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h b/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h
deleted file mode 100644
index 66e6e82a4dfce68fffe07d27e14ddc76e7d72ab5..0000000000000000000000000000000000000000
--- a/third_party/usrsctp/overrides/usrsctplib/netinet/sctp_openssl_sha1.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*-
- * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
- * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * a) Redistributions of source code must retain the above copyright notice,
- *   this list of conditions and the following disclaimer.
- *
- * b) 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.
- *
- * c) Neither the name of Cisco Systems, Inc. nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
- */
-
-#ifdef __FreeBSD__
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-#endif
-
-#ifndef __SCTP_OPENSSL_SHA1_h__
-#define __SCTP_OPENSSL_SHA1_h__
-
-#include <openssl/md5.h>
-#include <openssl/sha.h>
-/* libssl-dev calls this SHA_CTX, but it's refered to as SHA1_CTX within the
- *  SCTP stack code so here we typedef (or macro?) to equate the two.
- */
-typedef SHA_CTX SHA1_CTX;
-
-#endif