remove some dirty lines

Eigen/src/Core/products/SelfadjointRank2Update.h

diff --git a/Eigen/src/Core/products/SelfadjointRank2Update.h b/Eigen/src/Core/products/SelfadjointRank2Update.h
index 64fcf86..69cf189 100644
--- a/Eigen/src/Core/products/SelfadjointRank2Update.h
+++ b/Eigen/src/Core/products/SelfadjointRank2Update.h
@@ -38,10 +38,8 @@
   static void run(Scalar* mat, int stride, const UType& u, const VType& v, Scalar alpha)
   {
     const int size = u.size();
-//     std::cerr << "lower \n" << u.transpose() << "\n" << v.transpose() << "\n\n";
     for (int i=0; i<size; ++i)
     {
-//       std::cerr <<
       Map<Matrix<Scalar,Dynamic,1> >(mat+stride*i+i, size-i) +=
                         (alpha * ei_conj(u.coeff(i))) * v.end(size-i)
                       + (alpha * ei_conj(v.coeff(i))) * u.end(size-i);