Delete bundled copy of NSS and replace with README.

nss/lib/libpkix/pkix/util/pkix_error.h

Index: nss/lib/libpkix/pkix/util/pkix_error.h
diff --git a/nss/lib/libpkix/pkix/util/pkix_error.h b/nss/lib/libpkix/pkix/util/pkix_error.h
deleted file mode 100755
index ca4171ab175cc76ea3be951d3fe69f4b9e417b32..0000000000000000000000000000000000000000
--- a/nss/lib/libpkix/pkix/util/pkix_error.h
+++ /dev/null
@@ -1,36 +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/. */
-/*
- * pkix_error.h
- *
- * Error Object Type Definition
- *
- */
-
-#ifndef _PKIX_ERROR_H
-#define _PKIX_ERROR_H
-
-#include "pkix_tools.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct PKIX_ErrorStruct {
-        PKIX_ERRORCODE errCode;
-        PKIX_ERRORCLASS errClass;  /* was formerly "code" */
-        PKIX_Int32 plErr;
-        PKIX_Error *cause;
-        PKIX_PL_Object *info;
-};
-
-/* see source file for function documentation */
-
-extern PKIX_Error * pkix_Error_RegisterSelf(void *plContext);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _PKIX_ERROR_H */