Remove GYP annotations from third_party GN files.

third_party/libphonenumber/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.
 
 import("//testing/test.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 proto_library("proto") {
   sources = [
     "dist/resources/phonemetadata.proto",
@@ skipping 18 matching lines @@
 
 config("libphonenumber_config_internal") {
   if (is_clang) {
     cflags = [
       # https://github.com/googlei18n/libphonenumber/pull/741
       "-Wno-unused-private-field",
     ]
   }
 }
 
-# GYP version: third_party/libphonenumber/libphonenumber.gyp:libphonenumber_without_metadata
 static_library("libphonenumber_without_metadata") {
   sources = [
     "dist/cpp/src/phonenumbers/alternate_format.cc",
     "dist/cpp/src/phonenumbers/asyoutypeformatter.cc",
     "dist/cpp/src/phonenumbers/base/strings/string_piece.cc",
     "dist/cpp/src/phonenumbers/default_logger.cc",
     "dist/cpp/src/phonenumbers/logger.cc",
     "dist/cpp/src/phonenumbers/phonenumber.cc",
     "dist/cpp/src/phonenumbers/phonenumbermatch.cc",
     "dist/cpp/src/phonenumbers/phonenumbermatcher.cc",
@@ skipping 23 matching lines @@
     ":proto",
   ]
   deps = [
     ":proto",
     "//third_party/icu",
     "//third_party/protobuf:protobuf_lite",
   ]
 }
 
 # Library used by clients that includes production metadata.
-# GYP version: third_party/libphonenumber/libphonenumber.gyp:libphonenumber
 static_library("libphonenumber") {
   sources = [
     # Comment next line and uncomment the line after, if complete metadata
     # (with examples) is needed.
     "dist/cpp/src/phonenumbers/lite_metadata.cc",
     #"dist/cpp/src/phonenumbers/metadata.cc",
   ]
 
   public_deps = [
     ":libphonenumber_without_metadata",
   ]
 }
 
-# GYP version: third_party/libphonenumber/libphonenumber.gyp:libphonenumber_unittests
 test("libphonenumber_unittests") {
   sources = [
     "dist/cpp/src/phonenumbers/test_metadata.cc",
     "dist/cpp/test/phonenumbers/asyoutypeformatter_test.cc",
     "dist/cpp/test/phonenumbers/phonenumbermatch_test.cc",
     "dist/cpp/test/phonenumbers/phonenumbermatcher_test.cc",
     "dist/cpp/test/phonenumbers/phonenumberutil_test.cc",
     "dist/cpp/test/phonenumbers/regexp_adapter_test.cc",
     "dist/cpp/test/phonenumbers/stringutil_test.cc",
     "dist/cpp/test/phonenumbers/test_util.cc",
     "dist/cpp/test/phonenumbers/unicodestring_test.cc",
   ]
 
   configs += [ ":libphonenumber_config_internal" ]
 
   include_dirs = [ "dist/cpp/test" ]
 
   deps = [
     ":libphonenumber_without_metadata",
     "//base",
     "//base/test:run_all_unittests",
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/icu",
   ]
 }