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diff --git a/runtimes/nn/depend/external/eigen/Eigen/src/Geometry/OrthoMethods.h b/runtimes/nn/depend/external/eigen/Eigen/src/Geometry/OrthoMethods.h
deleted file mode 100644
index a035e6310..000000000
--- a/runtimes/nn/depend/external/eigen/Eigen/src/Geometry/OrthoMethods.h
+++ /dev/null
@@ -1,234 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
-// Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-#ifndef EIGEN_ORTHOMETHODS_H
-#define EIGEN_ORTHOMETHODS_H
-
-namespace Eigen { 
-
-/** \geometry_module \ingroup Geometry_Module
-  *
-  * \returns the cross product of \c *this and \a other
-  *
-  * Here is a very good explanation of cross-product: http://xkcd.com/199/
-  * 
-  * With complex numbers, the cross product is implemented as
-  * \f$ (\mathbf{a}+i\mathbf{b}) \times (\mathbf{c}+i\mathbf{d}) = (\mathbf{a} \times \mathbf{c} - \mathbf{b} \times \mathbf{d}) - i(\mathbf{a} \times \mathbf{d} - \mathbf{b} \times \mathbf{c})\f$
-  * 
-  * \sa MatrixBase::cross3()
-  */
-template<typename Derived>
-template<typename OtherDerived>
-#ifndef EIGEN_PARSED_BY_DOXYGEN
-EIGEN_DEVICE_FUNC inline typename MatrixBase<Derived>::template cross_product_return_type<OtherDerived>::type
-#else
-inline typename MatrixBase<Derived>::PlainObject
-#endif
-MatrixBase<Derived>::cross(const MatrixBase<OtherDerived>& other) const
-{
-  EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(Derived,3)
-  EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(OtherDerived,3)
-
-  // Note that there is no need for an expression here since the compiler
-  // optimize such a small temporary very well (even within a complex expression)
-  typename internal::nested_eval<Derived,2>::type lhs(derived());
-  typename internal::nested_eval<OtherDerived,2>::type rhs(other.derived());
-  return typename cross_product_return_type<OtherDerived>::type(
-    numext::conj(lhs.coeff(1) * rhs.coeff(2) - lhs.coeff(2) * rhs.coeff(1)),
-    numext::conj(lhs.coeff(2) * rhs.coeff(0) - lhs.coeff(0) * rhs.coeff(2)),
-    numext::conj(lhs.coeff(0) * rhs.coeff(1) - lhs.coeff(1) * rhs.coeff(0))
-  );
-}
-
-namespace internal {
-
-template< int Arch,typename VectorLhs,typename VectorRhs,
-          typename Scalar = typename VectorLhs::Scalar,
-          bool Vectorizable = bool((VectorLhs::Flags&VectorRhs::Flags)&PacketAccessBit)>
-struct cross3_impl {
-  EIGEN_DEVICE_FUNC static inline typename internal::plain_matrix_type<VectorLhs>::type
-  run(const VectorLhs& lhs, const VectorRhs& rhs)
-  {
-    return typename internal::plain_matrix_type<VectorLhs>::type(
-      numext::conj(lhs.coeff(1) * rhs.coeff(2) - lhs.coeff(2) * rhs.coeff(1)),
-      numext::conj(lhs.coeff(2) * rhs.coeff(0) - lhs.coeff(0) * rhs.coeff(2)),
-      numext::conj(lhs.coeff(0) * rhs.coeff(1) - lhs.coeff(1) * rhs.coeff(0)),
-      0
-    );
-  }
-};
-
-}
-
-/** \geometry_module \ingroup Geometry_Module
-  *
-  * \returns the cross product of \c *this and \a other using only the x, y, and z coefficients
-  *
-  * The size of \c *this and \a other must be four. This function is especially useful
-  * when using 4D vectors instead of 3D ones to get advantage of SSE/AltiVec vectorization.
-  *
-  * \sa MatrixBase::cross()
-  */
-template<typename Derived>
-template<typename OtherDerived>
-EIGEN_DEVICE_FUNC inline typename MatrixBase<Derived>::PlainObject
-MatrixBase<Derived>::cross3(const MatrixBase<OtherDerived>& other) const
-{
-  EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(Derived,4)
-  EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(OtherDerived,4)
-
-  typedef typename internal::nested_eval<Derived,2>::type DerivedNested;
-  typedef typename internal::nested_eval<OtherDerived,2>::type OtherDerivedNested;
-  DerivedNested lhs(derived());
-  OtherDerivedNested rhs(other.derived());
-
-  return internal::cross3_impl<Architecture::Target,
-                        typename internal::remove_all<DerivedNested>::type,
-                        typename internal::remove_all<OtherDerivedNested>::type>::run(lhs,rhs);
-}
-
-/** \geometry_module \ingroup Geometry_Module
-  *
-  * \returns a matrix expression of the cross product of each column or row
-  * of the referenced expression with the \a other vector.
-  *
-  * The referenced matrix must have one dimension equal to 3.
-  * The result matrix has the same dimensions than the referenced one.
-  *
-  * \sa MatrixBase::cross() */
-template<typename ExpressionType, int Direction>
-template<typename OtherDerived>
-EIGEN_DEVICE_FUNC 
-const typename VectorwiseOp<ExpressionType,Direction>::CrossReturnType
-VectorwiseOp<ExpressionType,Direction>::cross(const MatrixBase<OtherDerived>& other) const
-{
-  EIGEN_STATIC_ASSERT_VECTOR_SPECIFIC_SIZE(OtherDerived,3)
-  EIGEN_STATIC_ASSERT((internal::is_same<Scalar, typename OtherDerived::Scalar>::value),
-    YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY)
-  
-  typename internal::nested_eval<ExpressionType,2>::type mat(_expression());
-  typename internal::nested_eval<OtherDerived,2>::type vec(other.derived());
-
-  CrossReturnType res(_expression().rows(),_expression().cols());
-  if(Direction==Vertical)
-  {
-    eigen_assert(CrossReturnType::RowsAtCompileTime==3 && "the matrix must have exactly 3 rows");
-    res.row(0) = (mat.row(1) * vec.coeff(2) - mat.row(2) * vec.coeff(1)).conjugate();
-    res.row(1) = (mat.row(2) * vec.coeff(0) - mat.row(0) * vec.coeff(2)).conjugate();
-    res.row(2) = (mat.row(0) * vec.coeff(1) - mat.row(1) * vec.coeff(0)).conjugate();
-  }
-  else
-  {
-    eigen_assert(CrossReturnType::ColsAtCompileTime==3 && "the matrix must have exactly 3 columns");
-    res.col(0) = (mat.col(1) * vec.coeff(2) - mat.col(2) * vec.coeff(1)).conjugate();
-    res.col(1) = (mat.col(2) * vec.coeff(0) - mat.col(0) * vec.coeff(2)).conjugate();
-    res.col(2) = (mat.col(0) * vec.coeff(1) - mat.col(1) * vec.coeff(0)).conjugate();
-  }
-  return res;
-}
-
-namespace internal {
-
-template<typename Derived, int Size = Derived::SizeAtCompileTime>
-struct unitOrthogonal_selector
-{
-  typedef typename plain_matrix_type<Derived>::type VectorType;
-  typedef typename traits<Derived>::Scalar Scalar;
-  typedef typename NumTraits<Scalar>::Real RealScalar;
-  typedef Matrix<Scalar,2,1> Vector2;
-  EIGEN_DEVICE_FUNC
-  static inline VectorType run(const Derived& src)
-  {
-    VectorType perp = VectorType::Zero(src.size());
-    Index maxi = 0;
-    Index sndi = 0;
-    src.cwiseAbs().maxCoeff(&maxi);
-    if (maxi==0)
-      sndi = 1;
-    RealScalar invnm = RealScalar(1)/(Vector2() << src.coeff(sndi),src.coeff(maxi)).finished().norm();
-    perp.coeffRef(maxi) = -numext::conj(src.coeff(sndi)) * invnm;
-    perp.coeffRef(sndi) =  numext::conj(src.coeff(maxi)) * invnm;
-
-    return perp;
-   }
-};
-
-template<typename Derived>
-struct unitOrthogonal_selector<Derived,3>
-{
-  typedef typename plain_matrix_type<Derived>::type VectorType;
-  typedef typename traits<Derived>::Scalar Scalar;
-  typedef typename NumTraits<Scalar>::Real RealScalar;
-  EIGEN_DEVICE_FUNC
-  static inline VectorType run(const Derived& src)
-  {
-    VectorType perp;
-    /* Let us compute the crossed product of *this with a vector
-     * that is not too close to being colinear to *this.
-     */
-
-    /* unless the x and y coords are both close to zero, we can
-     * simply take ( -y, x, 0 ) and normalize it.
-     */
-    if((!isMuchSmallerThan(src.x(), src.z()))
-    || (!isMuchSmallerThan(src.y(), src.z())))
-    {
-      RealScalar invnm = RealScalar(1)/src.template head<2>().norm();
-      perp.coeffRef(0) = -numext::conj(src.y())*invnm;
-      perp.coeffRef(1) = numext::conj(src.x())*invnm;
-      perp.coeffRef(2) = 0;
-    }
-    /* if both x and y are close to zero, then the vector is close
-     * to the z-axis, so it's far from colinear to the x-axis for instance.
-     * So we take the crossed product with (1,0,0) and normalize it.
-     */
-    else
-    {
-      RealScalar invnm = RealScalar(1)/src.template tail<2>().norm();
-      perp.coeffRef(0) = 0;
-      perp.coeffRef(1) = -numext::conj(src.z())*invnm;
-      perp.coeffRef(2) = numext::conj(src.y())*invnm;
-    }
-
-    return perp;
-   }
-};
-
-template<typename Derived>
-struct unitOrthogonal_selector<Derived,2>
-{
-  typedef typename plain_matrix_type<Derived>::type VectorType;
-  EIGEN_DEVICE_FUNC
-  static inline VectorType run(const Derived& src)
-  { return VectorType(-numext::conj(src.y()), numext::conj(src.x())).normalized(); }
-};
-
-} // end namespace internal
-
-/** \geometry_module \ingroup Geometry_Module
-  *
-  * \returns a unit vector which is orthogonal to \c *this
-  *
-  * The size of \c *this must be at least 2. If the size is exactly 2,
-  * then the returned vector is a counter clock wise rotation of \c *this, i.e., (-y,x).normalized().
-  *
-  * \sa cross()
-  */
-template<typename Derived>
-EIGEN_DEVICE_FUNC typename MatrixBase<Derived>::PlainObject
-MatrixBase<Derived>::unitOrthogonal() const
-{
-  EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
-  return internal::unitOrthogonal_selector<Derived>::run(derived());
-}
-
-} // end namespace Eigen
-
-#endif // EIGEN_ORTHOMETHODS_H