Rename third_party/hunspell_new back to third_party/hunspell.

third_party/hunspell/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 config("hunspell_config") {
   defines = [
     "HUNSPELL_STATIC",
     "HUNSPELL_CHROME_CLIENT",
     "USE_HUNSPELL",
   ]
 }
 
-source_set("hunspell_new") {
+source_set("hunspell") {
   sources = [
     "google/bdict.cc",
     "google/bdict.h",
     "google/bdict_reader.cc",
     "google/bdict_reader.h",
     "google/bdict_writer.cc",
     "google/bdict_writer.h",
     "src/hunspell/affentry.cxx",
     "src/hunspell/affentry.hxx",
     "src/hunspell/affixmgr.cxx",
@@ skipping 67 matching lines @@
     cflags += [
       # affentry.cxx has one `while ((p = nextchar(p)));` parsing loop.
       "-Wno-empty-body",
 
       # affentry.hxx has NULL as default parameter for a FLAG in two
       # places.
       "-Wno-null-conversion",
     ]
   }
 }