Delete bundled copy of NSS and replace with README.

nspr/lib/libc/src/strtok.c

-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* 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/. */
-
-#include "plstr.h"
-
-PR_IMPLEMENT(char *)
-PL_strtok_r(char *s1, const char *s2, char **lasts)
-{
-    const char *sepp;
-    int         c, sc;
-    char       *tok;
-
-    if( s1 == NULL )
-    {
-        if( *lasts == NULL )
-            return NULL;
-
-        s1 = *lasts;
-    }
-  
-    for( ; (c = *s1) != 0; s1++ )
-    {
-        for( sepp = s2 ; (sc = *sepp) != 0 ; sepp++ )
-        {
-            if( c == sc )
-                break;
-        }
-        if( sc == 0 )
-            break; 
-    }
-
-    if( c == 0 )
-    {
-        *lasts = NULL;
-        return NULL;
-    }
-  
-    tok = s1++;
-
-    for( ; (c = *s1) != 0; s1++ )
-    {
-        for( sepp = s2; (sc = *sepp) != 0; sepp++ )
-        {
-            if( c == sc )
-            {
-                *s1++ = '\0';
-                *lasts = s1;
-                return tok;
-            }
-        }
-    }
-    *lasts = NULL;
-    return tok;
-}