message: code review: remove unnecessary test of empty suffix_
diff: @@ -259,9 +259,6 @@ class Simplex_tree_boundary_opposite_vertex_simplex_iterator : public boost::ite
  suffix_.push_back(next_);
  next_ = sib_->parent();
  sib_ = new_sib;
  - if (suffix_.empty())
  - baov_.second = last_;
  - else
  baov_.second = suffix_.back();
  }
  