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diff --git a/kaldi_io/src/kaldi/util/edit-distance.h b/kaldi_io/src/kaldi/util/edit-distance.h
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--- a/kaldi_io/src/kaldi/util/edit-distance.h
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@@ -1,63 +0,0 @@
-// util/edit-distance.h
-
-// Copyright 2009-2011     Microsoft Corporation;  Haihua Xu
-
-// See ../../COPYING for clarification regarding multiple 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
-//
-//  http://www.apache.org/licenses/LICENSE-2.0
-//
-// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
-// MERCHANTABLITY OR NON-INFRINGEMENT.
-// See the Apache 2 License for the specific language governing permissions and
-// limitations under the License.
-
-
-#ifndef KALDI_UTIL_EDIT_DISTANCE_H_
-#define KALDI_UTIL_EDIT_DISTANCE_H_
-#include <vector>
-#include <set>
-#include <algorithm>
-#include <limits>
-#include <cassert>
-#include "base/kaldi-types.h"
-
-namespace kaldi {
-
-// Compute the edit-distance between two strings.
-template<class T>
-int32 LevenshteinEditDistance(const std::vector<T> &a,
-                              const std::vector<T> &b);
-
-
-// edit distance calculation with conventional method.
-// note: noise word must be filtered out from the hypothesis and reference sequence
-// before the following procedure conducted.
-template<class T>
-int32 LevenshteinEditDistance(const std::vector<T> &ref,
-                              const std::vector<T> &hyp,
-                              int32 *ins, int32 *del, int32 *sub);
-
-// This version of the edit-distance computation outputs the alignment
-// between the two.  This is a vector of pairs of (symbol a, symbol b).
-// The epsilon symbol (eps_symbol) must not occur in sequences a or b.
-// Where one aligned to no symbol in the other (insertion or deletion),
-// epsilon will be the corresponding member of the pair.
-// It returns the edit-distance between the two strings.
-
-template<class T>
-int32 LevenshteinAlignment(const std::vector<T> &a,
-                           const std::vector<T> &b,
-                           T eps_symbol,
-                           std::vector<std::pair<T, T> > *output);
-
-} // end namespace kaldi
-
-#include "edit-distance-inl.h"
-
-#endif