Update NSPR to 4.12 and NSS to 3.23 on iOS

nss/lib/freebl/poly1305/poly1305.h

Index: nss/lib/freebl/poly1305/poly1305.h
diff --git a/nss/lib/freebl/poly1305/poly1305.h b/nss/lib/freebl/poly1305/poly1305.h
deleted file mode 100644
index 4beb1726c1448a657939fe70a203620db98ab55a..0000000000000000000000000000000000000000
--- a/nss/lib/freebl/poly1305/poly1305.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * poly1305.h - header file for Poly1305 implementation.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef FREEBL_POLY1305_H_
-#define FREEBL_POLY1305_H_
-
-typedef unsigned char poly1305_state[512];
-
-/* Poly1305Init sets up |state| so that it can be used to calculate an
- * authentication tag with the one-time key |key|. Note that |key| is a
- * one-time key and therefore there is no `reset' method because that would
- * enable several messages to be authenticated with the same key. */
-extern void Poly1305Init(poly1305_state* state,
-			 const unsigned char key[32]);
-
-/* Poly1305Update processes |in_len| bytes from |in|. It can be called zero or
- * more times after poly1305_init. */
-extern void Poly1305Update(poly1305_state* state,
-			   const unsigned char *in,
-			   size_t inLen);
-
-/* Poly1305Finish completes the poly1305 calculation and writes a 16 byte
- * authentication tag to |mac|. */
-extern void Poly1305Finish(poly1305_state* state,
-			   unsigned char mac[16]);
-
-#endif  /* FREEBL_POLY1305_H_ */