Remove unused parm, as that generated warnings.

git-svn-id: https://svn.dealii.org/trunk@3201 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/deal.II/source/numerics/derivative_approximation.cc b/deal.II/deal.II/source/numerics/derivative_approximation.cc
index c3c80d2b2b5ac96199cbfaf044eda1cdc06fe2ee..dcc4727af7b697ad3fe255253b52dfa6725e2e0d 100644 (file)
--- a/deal.II/deal.II/source/numerics/derivative_approximation.cc
+++ b/deal.II/deal.II/source/numerics/derivative_approximation.cc
@@ -125,7 +125,7 @@ template <int dim>
 inline
 double
 DerivativeApproximation::SecondDerivative<dim>::
-derivative_norm (const Derivative &d)
+derivative_norm (const Derivative &)
 {
                                   // computing the spectral norm is
                                   // not so simple in general. it is