message: Remove make_diag_dominant from CUDA test
diff: @@ -69,7 +69,6 @@ protected:
  cuda = gko::CudaExecutor::create(0, ref);
  mtx = gen_mtx(123, 123);
  - make_diag_dominant(mtx.get());
  d_mtx = Mtx::create(cuda);
  d_mtx->copy_from(mtx.get());
  cuda_idr_factory =
  