Remove old code

Signed-off-by: Richard Qin <richard.qin.x@gmail.com>

1 files changed, 0 insertions, 174 deletions

diff --git a/third_party/libcxx/include/c++/v1/concepts b/third_party/libcxx/include/c++/v1/concepts
deleted file mode 100644
index 47e31d0..0000000
--- a/third_party/libcxx/include/c++/v1/concepts
+++ /dev/null
@@ -1,174 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef _LIBCPP_CONCEPTS
-#define _LIBCPP_CONCEPTS
-
-/*
-    concepts synopsis
-namespace std {
-  // [concepts.lang], language-related concepts
-  // [concept.same], concept same_as
-  template<class T, class U>
-    concept same_as = see below;
-
-  // [concept.derived], concept derived_from
-  template<class Derived, class Base>
-    concept derived_from = see below;
-
-  // [concept.convertible], concept convertible_to
-  template<class From, class To>
-    concept convertible_to = see below;
-
-  // [concept.commonref], concept common_reference_with
-  template<class T, class U>
-    concept common_reference_with = see below;
-
-  // [concept.common], concept common_with
-  template<class T, class U>
-    concept common_with = see below;
-
-  // [concepts.arithmetic], arithmetic concepts
-  template<class T>
-    concept integral = see below;
-  template<class T>
-    concept signed_integral = see below;
-  template<class T>
-    concept unsigned_integral = see below;
-  template<class T>
-    concept floating_point = see below;
-
-  // [concept.assignable], concept assignable_from
-  template<class LHS, class RHS>
-    concept assignable_from = see below;
-
-  // [concept.swappable], concept swappable
-  namespace ranges {
-    inline namespace unspecified {
-      inline constexpr unspecified swap = unspecified;
-    }
-  }
-  template<class T>
-    concept swappable = see below;
-  template<class T, class U>
-    concept swappable_with = see below;
-
-  // [concept.destructible], concept destructible
-  template<class T>
-    concept destructible = see below;
-
-  // [concept.constructible], concept constructible_from
-  template<class T, class... Args>
-    concept constructible_from = see below;
-
-  // [concept.default.init], concept default_initializable
-  template<class T>
-    concept default_initializable = see below;
-
-  // [concept.moveconstructible], concept move_constructible
-  template<class T>
-    concept move_constructible = see below;
-
-  // [concept.copyconstructible], concept copy_constructible
-  template<class T>
-    concept copy_constructible = see below;
-
-  // [concept.equalitycomparable], concept equality_comparable
-  template<class T>
-    concept equality_comparable = see below;
-  template<class T, class U>
-    concept equality_comparable_with = see below;
-
-  // [concept.totallyordered], concept totally_ordered
-  template<class T>
-    concept totally_ordered = see below;
-  template<class T, class U>
-    concept totally_ordered_with = see below;
-
-  // [concepts.object], object concepts
-  template<class T>
-    concept movable = see below;
-  template<class T>
-    concept copyable = see below;
-  template<class T>
-    concept semiregular = see below;
-  template<class T>
-    concept regular = see below;
-
-  // [concepts.callable], callable concepts
-  // [concept.invocable], concept invocable
-  template<class F, class... Args>
-    concept invocable = see below;
-
-  // [concept.regularinvocable], concept regular_invocable
-  template<class F, class... Args>
-    concept regular_invocable = see below;
-
-  // [concept.predicate], concept predicate
-  template<class F, class... Args>
-    concept predicate = see below;
-
-  // [concept.relation], concept relation
-  template<class R, class T, class U>
-    concept relation = see below;
-
-  // [concept.equiv], concept equivalence_relation
-  template<class R, class T, class U>
-    concept equivalence_relation = see below;
-
-  // [concept.strictweakorder], concept strict_weak_order
-  template<class R, class T, class U>
-    concept strict_weak_order = see below;
-}
-
-*/
-
-#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
-#  include <__cxx03/__config>
-#else
-#  include <__config>
-
-#  if _LIBCPP_STD_VER >= 20
-#    include <__concepts/arithmetic.h>
-#    include <__concepts/assignable.h>
-#    include <__concepts/boolean_testable.h>
-#    include <__concepts/class_or_enum.h>
-#    include <__concepts/common_reference_with.h>
-#    include <__concepts/common_with.h>
-#    include <__concepts/constructible.h>
-#    include <__concepts/convertible_to.h>
-#    include <__concepts/copyable.h>
-#    include <__concepts/derived_from.h>
-#    include <__concepts/destructible.h>
-#    include <__concepts/different_from.h>
-#    include <__concepts/equality_comparable.h>
-#    include <__concepts/invocable.h>
-#    include <__concepts/movable.h>
-#    include <__concepts/predicate.h>
-#    include <__concepts/regular.h>
-#    include <__concepts/relation.h>
-#    include <__concepts/same_as.h>
-#    include <__concepts/semiregular.h>
-#    include <__concepts/swappable.h>
-#    include <__concepts/totally_ordered.h>
-#  endif // _LIBCPP_STD_VER >= 20
-
-#  include <version>
-
-#  if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
-#    include <cstddef>
-#    include <type_traits>
-#  endif
-
-#  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#    pragma GCC system_header
-#  endif
-#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
-
-#endif // _LIBCPP_CONCEPTS