message: Fixing compiler warning
diff: @@ -2850,7 +2850,7 @@ ND_P2D_FECollection::ND_P2D_FECollection(const int p, const int dim,
  MFEM_VERIFY(dim >= 1 && dim <= 2,
  "ND_P2D_FECollection requires 1 <= dim <= 2.");
  - const int pm1 = p - 1, pm2 = p - 2;
  + const int pm1 = p - 1;
  if (cb_type == BasisType::GaussLobatto &&
  ob_type == BasisType::GaussLegendre)
  