Delete bundled copy of NSS and replace with README.

nss/lib/freebl/sha256.h

Index: nss/lib/freebl/sha256.h
diff --git a/nss/lib/freebl/sha256.h b/nss/lib/freebl/sha256.h
deleted file mode 100644
index 86bec7ccb1154ea6a8626dc812db47e8ef5fde31..0000000000000000000000000000000000000000
--- a/nss/lib/freebl/sha256.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* 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 _SHA_256_H_
-#define _SHA_256_H_
-
-#include "prtypes.h"
-
-struct SHA256ContextStr {
-    union {
-	PRUint32 w[64];	    /* message schedule, input buffer, plus 48 words */
-	PRUint8  b[256];
-    } u;
-    PRUint32 h[8];		/* 8 state variables */
-    PRUint32 sizeHi,sizeLo;	/* 64-bit count of hashed bytes. */
-};
-
-#endif /* _SHA_256_H_ */