message: Update adaptive-bj example.
diff: @@ -74,13 +74,12 @@ int main(int argc, char *argv[])
  auto A = share(gko::read<mtx>(std::ifstream("data/A.mtx"), exec));
  // Create RHS and initial guess as 1
  gko::size_type size = A->get_size()[0];
  - auto host_x = gko::matrix::Dense<ValueType>::create(exec->get_master(),
  - gko::dim<2>(size, 1));
  + auto host_x = vec::create(exec->get_master(), gko::dim<2>(size, 1));
  for (auto i = 0; i < size; i++) {
  host_x->at(i, 0) = 1.;
  }
  - auto x = gko::matrix::Dense<>::create(exec);
  - auto b = gko::matrix::Dense<>::create(exec);
  + auto x = vec::create(exec);
  + auto b = vec::create(exec);
  x->copy_from(host_x.get());
  b->copy_from(host_x.get());
  