Uninstall `torch_tensorrt` in `DeepSpeed` CI image for now
# What does this PR do?

Since we update CI to use PyTorch 1.13, it uses a base image `nvcr.io/nvidia/pytorch:22.04-py3` which contains `torch_tensorrt`.
This causes the CI failing from the test collection - i.e. the whole test suite fails from the beginning.

This PR uninstalls `torch_tensorrt` for now (previously, this is not installed for DeepSpeed CI - the stable release version), so at least the CI could run (and to see if any test would fail with PyTorch 1.13).

We will have to work on the `torch_tensorrt` issue though.

#### Current error message

```bash
==================================== ERRORS ====================================
______________ ERROR collecting tests/deepspeed/test_deepspeed.py ______________
ImportError while importing test module '/workspace/transformers/tests/deepspeed/test_deepspeed.py'.
```
_The documentation is not available anymore as the PR was closed or merged._