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diff --git a/contrib/llvm-project/clang/include/clang/Lex/DependencyDirectivesSourceMinimizer.h b/contrib/llvm-project/clang/include/clang/Lex/DependencyDirectivesSourceMinimizer.h
deleted file mode 100644
index 9bb820156c25..000000000000
--- a/contrib/llvm-project/clang/include/clang/Lex/DependencyDirectivesSourceMinimizer.h
+++ /dev/null
@@ -1,112 +0,0 @@
-//===- clang/Lex/DependencyDirectivesSourceMinimizer.h -  ----------*- 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
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// This is the interface for minimizing header and source files to the
-/// minimum necessary preprocessor directives for evaluating includes. It
-/// reduces the source down to #define, #include, #import, @import, and any
-/// conditional preprocessor logic that contains one of those.
-///
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LEX_DEPENDENCY_DIRECTIVES_SOURCE_MINIMIZER_H
-#define LLVM_CLANG_LEX_DEPENDENCY_DIRECTIVES_SOURCE_MINIMIZER_H
-
-#include "clang/Basic/SourceLocation.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-
-namespace clang {
-
-class DiagnosticsEngine;
-
-namespace minimize_source_to_dependency_directives {
-
-/// Represents the kind of preprocessor directive or a module declaration that
-/// is tracked by the source minimizer in its token output.
-enum TokenKind {
-  pp_none,
-  pp_include,
-  pp___include_macros,
-  pp_define,
-  pp_undef,
-  pp_import,
-  pp_pragma_import,
-  pp_pragma_once,
-  pp_include_next,
-  pp_if,
-  pp_ifdef,
-  pp_ifndef,
-  pp_elif,
-  pp_elifdef,
-  pp_elifndef,
-  pp_else,
-  pp_endif,
-  decl_at_import,
-  cxx_export_decl,
-  cxx_module_decl,
-  cxx_import_decl,
-  pp_eof,
-};
-
-/// Represents a simplified token that's lexed as part of the source
-/// minimization. It's used to track the location of various preprocessor
-/// directives that could potentially have an effect on the depedencies.
-struct Token {
-  /// The kind of token.
-  TokenKind K = pp_none;
-
-  /// Offset into the output byte stream of where the directive begins.
-  int Offset = -1;
-
-  Token(TokenKind K, int Offset) : K(K), Offset(Offset) {}
-};
-
-/// Simplified token range to track the range of a potentially skippable PP
-/// directive.
-struct SkippedRange {
-  /// Offset into the output byte stream of where the skipped directive begins.
-  int Offset;
-
-  /// The number of bytes that can be skipped before the preprocessing must
-  /// resume.
-  int Length;
-};
-
-/// Computes the potential source ranges that can be skipped by the preprocessor
-/// when skipping a directive like #if, #ifdef or #elsif.
-///
-/// \returns false on success, true on error.
-bool computeSkippedRanges(ArrayRef<Token> Input,
-                          llvm::SmallVectorImpl<SkippedRange> &Range);
-
-} // end namespace minimize_source_to_dependency_directives
-
-/// Minimize the input down to the preprocessor directives that might have
-/// an effect on the dependencies for a compilation unit.
-///
-/// This function deletes all non-preprocessor code, and strips anything that
-/// can't affect what gets included. It canonicalizes whitespace where
-/// convenient to stabilize the output against formatting changes in the input.
-///
-/// Clears the output vectors at the beginning of the call.
-///
-/// \returns false on success, true on error. If the diagnostic engine is not
-/// null, an appropriate error is reported using the given input location
-/// with the offset that corresponds to the minimizer's current buffer offset.
-bool minimizeSourceToDependencyDirectives(
-    llvm::StringRef Input, llvm::SmallVectorImpl<char> &Output,
-    llvm::SmallVectorImpl<minimize_source_to_dependency_directives::Token>
-        &Tokens,
-    DiagnosticsEngine *Diags = nullptr,
-    SourceLocation InputSourceLoc = SourceLocation());
-
-} // end namespace clang
-
-#endif // LLVM_CLANG_LEX_DEPENDENCY_DIRECTIVES_SOURCE_MINIMIZER_H