diff --git a/modules/flann/include/opencv2/flann/hdf5.h b/modules/flann/include/opencv2/flann/hdf5.h
deleted file mode 100644
index 80d23b9770..0000000000
--- a/modules/flann/include/opencv2/flann/hdf5.h
+++ /dev/null
@@ -1,231 +0,0 @@
-/***********************************************************************
- * Software License Agreement (BSD License)
- *
- * Copyright 2008-2009  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
- * Copyright 2008-2009  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *************************************************************************/
-
-
-#ifndef OPENCV_FLANN_HDF5_H_
-#define OPENCV_FLANN_HDF5_H_
-
-#include <hdf5.h>
-
-#include "matrix.h"
-
-
-namespace cvflann
-{
-
-namespace
-{
-
-template<typename T>
-hid_t get_hdf5_type()
-{
-    throw FLANNException("Unsupported type for IO operations");
-}
-
-template<>
-hid_t get_hdf5_type<char>() { return H5T_NATIVE_CHAR; }
-template<>
-hid_t get_hdf5_type<unsigned char>() { return H5T_NATIVE_UCHAR; }
-template<>
-hid_t get_hdf5_type<short int>() { return H5T_NATIVE_SHORT; }
-template<>
-hid_t get_hdf5_type<unsigned short int>() { return H5T_NATIVE_USHORT; }
-template<>
-hid_t get_hdf5_type<int>() { return H5T_NATIVE_INT; }
-template<>
-hid_t get_hdf5_type<unsigned int>() { return H5T_NATIVE_UINT; }
-template<>
-hid_t get_hdf5_type<long>() { return H5T_NATIVE_LONG; }
-template<>
-hid_t get_hdf5_type<unsigned long>() { return H5T_NATIVE_ULONG; }
-template<>
-hid_t get_hdf5_type<float>() { return H5T_NATIVE_FLOAT; }
-template<>
-hid_t get_hdf5_type<double>() { return H5T_NATIVE_DOUBLE; }
-}
-
-
-#define CHECK_ERROR(x,y) if ((x)<0) throw FLANNException((y));
-
-template<typename T>
-void save_to_file(const cvflann::Matrix<T>& dataset, const String& filename, const String& name)
-{
-
-#if H5Eset_auto_vers == 2
-    H5Eset_auto( H5E_DEFAULT, NULL, NULL );
-#else
-    H5Eset_auto( NULL, NULL );
-#endif
-
-    herr_t status;
-    hid_t file_id;
-    file_id = H5Fopen(filename.c_str(), H5F_ACC_RDWR, H5P_DEFAULT);
-    if (file_id < 0) {
-        file_id = H5Fcreate(filename.c_str(), H5F_ACC_EXCL, H5P_DEFAULT, H5P_DEFAULT);
-    }
-    CHECK_ERROR(file_id,"Error creating hdf5 file.");
-
-    hsize_t     dimsf[2];              // dataset dimensions
-    dimsf[0] = dataset.rows;
-    dimsf[1] = dataset.cols;
-
-    hid_t space_id = H5Screate_simple(2, dimsf, NULL);
-    hid_t memspace_id = H5Screate_simple(2, dimsf, NULL);
-
-    hid_t dataset_id;
-#if H5Dcreate_vers == 2
-    dataset_id = H5Dcreate2(file_id, name.c_str(), get_hdf5_type<T>(), space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-#else
-    dataset_id = H5Dcreate(file_id, name.c_str(), get_hdf5_type<T>(), space_id, H5P_DEFAULT);
-#endif
-
-    if (dataset_id<0) {
-#if H5Dopen_vers == 2
-        dataset_id = H5Dopen2(file_id, name.c_str(), H5P_DEFAULT);
-#else
-        dataset_id = H5Dopen(file_id, name.c_str());
-#endif
-    }
-    CHECK_ERROR(dataset_id,"Error creating or opening dataset in file.");
-
-    status = H5Dwrite(dataset_id, get_hdf5_type<T>(), memspace_id, space_id, H5P_DEFAULT, dataset.data );
-    CHECK_ERROR(status, "Error writing to dataset");
-
-    H5Sclose(memspace_id);
-    H5Sclose(space_id);
-    H5Dclose(dataset_id);
-    H5Fclose(file_id);
-
-}
-
-
-template<typename T>
-void load_from_file(cvflann::Matrix<T>& dataset, const String& filename, const String& name)
-{
-    herr_t status;
-    hid_t file_id = H5Fopen(filename.c_str(), H5F_ACC_RDWR, H5P_DEFAULT);
-    CHECK_ERROR(file_id,"Error opening hdf5 file.");
-
-    hid_t dataset_id;
-#if H5Dopen_vers == 2
-    dataset_id = H5Dopen2(file_id, name.c_str(), H5P_DEFAULT);
-#else
-    dataset_id = H5Dopen(file_id, name.c_str());
-#endif
-    CHECK_ERROR(dataset_id,"Error opening dataset in file.");
-
-    hid_t space_id = H5Dget_space(dataset_id);
-
-    hsize_t dims_out[2];
-    H5Sget_simple_extent_dims(space_id, dims_out, NULL);
-
-    dataset = cvflann::Matrix<T>(new T[dims_out[0]*dims_out[1]], dims_out[0], dims_out[1]);
-
-    status = H5Dread(dataset_id, get_hdf5_type<T>(), H5S_ALL, H5S_ALL, H5P_DEFAULT, dataset[0]);
-    CHECK_ERROR(status, "Error reading dataset");
-
-    H5Sclose(space_id);
-    H5Dclose(dataset_id);
-    H5Fclose(file_id);
-}
-
-
-#ifdef HAVE_MPI
-
-namespace mpi
-{
-/**
- * Loads a the hyperslice corresponding to this processor from a hdf5 file.
- * @param flann_dataset Dataset where the data is loaded
- * @param filename HDF5 file name
- * @param name Name of dataset inside file
- */
-template<typename T>
-void load_from_file(cvflann::Matrix<T>& dataset, const String& filename, const String& name)
-{
-    MPI_Comm comm  = MPI_COMM_WORLD;
-    MPI_Info info  = MPI_INFO_NULL;
-
-    int mpi_size, mpi_rank;
-    MPI_Comm_size(comm, &mpi_size);
-    MPI_Comm_rank(comm, &mpi_rank);
-
-    herr_t status;
-
-    hid_t plist_id = H5Pcreate(H5P_FILE_ACCESS);
-    H5Pset_fapl_mpio(plist_id, comm, info);
-    hid_t file_id = H5Fopen(filename.c_str(), H5F_ACC_RDWR, plist_id);
-    CHECK_ERROR(file_id,"Error opening hdf5 file.");
-    H5Pclose(plist_id);
-    hid_t dataset_id;
-#if H5Dopen_vers == 2
-    dataset_id = H5Dopen2(file_id, name.c_str(), H5P_DEFAULT);
-#else
-    dataset_id = H5Dopen(file_id, name.c_str());
-#endif
-    CHECK_ERROR(dataset_id,"Error opening dataset in file.");
-
-    hid_t space_id = H5Dget_space(dataset_id);
-    hsize_t dims[2];
-    H5Sget_simple_extent_dims(space_id, dims, NULL);
-
-    hsize_t count[2];
-    hsize_t offset[2];
-
-    hsize_t item_cnt = dims[0]/mpi_size+(dims[0]%mpi_size==0 ? 0 : 1);
-    hsize_t cnt = (mpi_rank<mpi_size-1 ? item_cnt : dims[0]-item_cnt*(mpi_size-1));
-
-    count[0] = cnt;
-    count[1] = dims[1];
-    offset[0] = mpi_rank*item_cnt;
-    offset[1] = 0;
-
-    hid_t memspace_id = H5Screate_simple(2,count,NULL);
-
-    H5Sselect_hyperslab(space_id, H5S_SELECT_SET, offset, NULL, count, NULL);
-
-    dataset.rows = count[0];
-    dataset.cols = count[1];
-    dataset.data = new T[dataset.rows*dataset.cols];
-
-    plist_id = H5Pcreate(H5P_DATASET_XFER);
-    H5Pset_dxpl_mpio(plist_id, H5FD_MPIO_COLLECTIVE);
-    status = H5Dread(dataset_id, get_hdf5_type<T>(), memspace_id, space_id, plist_id, dataset.data);
-    CHECK_ERROR(status, "Error reading dataset");
-
-    H5Pclose(plist_id);
-    H5Sclose(space_id);
-    H5Sclose(memspace_id);
-    H5Dclose(dataset_id);
-    H5Fclose(file_id);
-}
-}
-#endif // HAVE_MPI
-} // namespace cvflann::mpi
-
-#endif /* OPENCV_FLANN_HDF5_H_ */