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diff --git a/third_party/abseil-cpp/absl/strings/internal/string_constant.h b/third_party/abseil-cpp/absl/strings/internal/string_constant.h
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index a11336b7f0..0000000000
--- a/third_party/abseil-cpp/absl/strings/internal/string_constant.h
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@@ -1,64 +0,0 @@
-// Copyright 2020 The Abseil Authors.
-//
-// 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
-//
-//      https://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 ABSL_STRINGS_INTERNAL_STRING_CONSTANT_H_
-#define ABSL_STRINGS_INTERNAL_STRING_CONSTANT_H_
-
-#include "absl/meta/type_traits.h"
-#include "absl/strings/string_view.h"
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace strings_internal {
-
-// StringConstant<T> represents a compile time string constant.
-// It can be accessed via its `absl::string_view value` static member.
-// It is guaranteed that the `string_view` returned has constant `.data()`,
-// constant `.size()` and constant `value[i]` for all `0 <= i < .size()`
-//
-// The `T` is an opaque type. It is guaranteed that different string constants
-// will have different values of `T`. This allows users to associate the string
-// constant with other static state at compile time.
-//
-// Instances should be made using the `MakeStringConstant()` factory function
-// below.
-template <typename T>
-struct StringConstant {
-  static constexpr absl::string_view value = T{}();
-  constexpr absl::string_view operator()() const { return value; }
-
-  // Check to be sure `view` points to constant data.
-  // Otherwise, it can't be constant evaluated.
-  static_assert(value.empty() || 2 * value[0] != 1,
-                "The input string_view must point to constant data.");
-};
-
-template <typename T>
-constexpr absl::string_view StringConstant<T>::value;  // NOLINT
-
-// Factory function for `StringConstant` instances.
-// It supports callables that have a constexpr default constructor and a
-// constexpr operator().
-// It must return an `absl::string_view` or `const char*` pointing to constant
-// data. This is validated at compile time.
-template <typename T>
-constexpr StringConstant<T> MakeStringConstant(T) {
-  return {};
-}
-
-}  // namespace strings_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_STRINGS_INTERNAL_STRING_CONSTANT_H_