message: Remove redundant line from future.cu test
diff: @@ -102,8 +102,6 @@ struct test_future_new_stream
  {
  auto f0 = thrust::device_future<T>(thrust::new_stream);
  - auto f0_stream = f0.stream().native_handle();
  -
  ASSERT_EQUAL(true, f0.valid_stream());
  ASSERT_EQUAL(false, f0.valid_content());
  