diff --git a/mlir/unittests/Dialect/Affine/Analysis/AffineStructuresParser.cpp b/mlir/unittests/Dialect/Affine/Analysis/AffineStructuresParser.cpp
deleted file mode 100644
--- a/mlir/unittests/Dialect/Affine/Analysis/AffineStructuresParser.cpp
+++ /dev/null
@@ -1,25 +0,0 @@
-//===- AffineStructuresParser.cpp - Parser for AffineStructures -*- 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
-//
-//===----------------------------------------------------------------------===//
-
-#include "./AffineStructuresParser.h"
-#include "mlir/AsmParser/AsmParser.h"
-#include "mlir/IR/IntegerSet.h"
-
-using namespace mlir;
-using namespace presburger;
-
-FailureOr<IntegerPolyhedron>
-mlir::parseIntegerSetToFAC(llvm::StringRef str, MLIRContext *context,
-                           bool printDiagnosticInfo) {
-  IntegerSet set = parseIntegerSet(str, context, printDiagnosticInfo);
-
-  if (!set)
-    return failure();
-
-  return FlatAffineValueConstraints(set);
-}