Remove `DS_BUILD_AIO=1`
# What does this PR do?

In order to make 
```
PASSED tests/deepspeed/test_deepspeed.py::TrainerIntegrationDeepSpeed::test_stage3_nvme_offload
```
Note it pass, not skipped. I am not sure if this is normal however, but you can see the results in [this job run](https://github.com/huggingface/transformers/actions/runs/4686799372)
_The documentation is not available anymore as the PR was closed or merged._<|||||>funny, it means that it built it at runtime and it worked. So it finds the right library at run time.

So actually if we wanted to skip the test we would need to removed apt install libaio-dev.

But this is a better outcome, so let's keep it the way you proposed.