Remove Chrome's own version of libaddressinput in favor of the upstream.

third_party/libaddressinput/chromium/cpp/src/util/cctype_tolower_equal.h

Index: third_party/libaddressinput/chromium/cpp/src/util/cctype_tolower_equal.h
diff --git a/third_party/libaddressinput/chromium/cpp/src/util/cctype_tolower_equal.h b/third_party/libaddressinput/chromium/cpp/src/util/cctype_tolower_equal.h
deleted file mode 100644
index 106087e8c44ddd67552efeae063a91ba2663971f..0000000000000000000000000000000000000000
--- a/third_party/libaddressinput/chromium/cpp/src/util/cctype_tolower_equal.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (C) 2014 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#ifndef I18N_ADDRESSINPUT_UTIL_CCTYPE_TOLOWER_EQUAL_H_
-#define I18N_ADDRESSINPUT_UTIL_CCTYPE_TOLOWER_EQUAL_H_
-
-#include <functional>
-#include <string>
-
-namespace i18n {
-namespace addressinput {
-
-// Performs case insensitive comparison of |a| and |b| by calling std::tolower()
-// from <cctype>.
-struct EqualToTolowerString
-    : public std::binary_function<std::string, std::string, bool> {
-  result_type operator()(const first_argument_type& a,
-                         const second_argument_type& b) const;
-};
-
-}  // addressinput
-}  // i18n
-
-#endif  // I18N_ADDRESSINPUT_UTIL_CCTYPE_TOLOWER_EQUAL_H_