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diff --git a/runtimes/nn/depend/external/eigen/Eigen/src/LU/PartialPivLU_LAPACKE.h b/runtimes/nn/depend/external/eigen/Eigen/src/LU/PartialPivLU_LAPACKE.h
deleted file mode 100644
index 755168a94..000000000
--- a/runtimes/nn/depend/external/eigen/Eigen/src/LU/PartialPivLU_LAPACKE.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- Copyright (c) 2011, Intel Corporation. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
-
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
- * 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.
- * Neither the name of Intel Corporation nor the names of its contributors may
-   be used to endorse or promote products derived from this software without
-   specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
-
- ********************************************************************************
- *   Content : Eigen bindings to LAPACKe
- *     LU decomposition with partial pivoting based on LAPACKE_?getrf function.
- ********************************************************************************
-*/
-
-#ifndef EIGEN_PARTIALLU_LAPACK_H
-#define EIGEN_PARTIALLU_LAPACK_H
-
-namespace Eigen { 
-
-namespace internal {
-
-/** \internal Specialization for the data types supported by LAPACKe */
-
-#define EIGEN_LAPACKE_LU_PARTPIV(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX) \
-template<int StorageOrder> \
-struct partial_lu_impl<EIGTYPE, StorageOrder, lapack_int> \
-{ \
-  /* \internal performs the LU decomposition in-place of the matrix represented */ \
-  static lapack_int blocked_lu(Index rows, Index cols, EIGTYPE* lu_data, Index luStride, lapack_int* row_transpositions, lapack_int& nb_transpositions, lapack_int maxBlockSize=256) \
-  { \
-    EIGEN_UNUSED_VARIABLE(maxBlockSize);\
-    lapack_int matrix_order, first_zero_pivot; \
-    lapack_int m, n, lda, *ipiv, info; \
-    EIGTYPE* a; \
-/* Set up parameters for ?getrf */ \
-    matrix_order = StorageOrder==RowMajor ? LAPACK_ROW_MAJOR : LAPACK_COL_MAJOR; \
-    lda = convert_index<lapack_int>(luStride); \
-    a = lu_data; \
-    ipiv = row_transpositions; \
-    m = convert_index<lapack_int>(rows); \
-    n = convert_index<lapack_int>(cols); \
-    nb_transpositions = 0; \
-\
-    info = LAPACKE_##LAPACKE_PREFIX##getrf( matrix_order, m, n, (LAPACKE_TYPE*)a, lda, ipiv ); \
-\
-    for(int i=0;i<m;i++) { ipiv[i]--; if (ipiv[i]!=i) nb_transpositions++; } \
-\
-    eigen_assert(info >= 0); \
-/* something should be done with nb_transpositions */ \
-\
-    first_zero_pivot = info; \
-    return first_zero_pivot; \
-  } \
-};
-
-EIGEN_LAPACKE_LU_PARTPIV(double, double, d)
-EIGEN_LAPACKE_LU_PARTPIV(float, float, s)
-EIGEN_LAPACKE_LU_PARTPIV(dcomplex, lapack_complex_double, z)
-EIGEN_LAPACKE_LU_PARTPIV(scomplex, lapack_complex_float,  c)
-
-} // end namespace internal
-
-} // end namespace Eigen
-
-#endif // EIGEN_PARTIALLU_LAPACK_H