remove upgrading setuptools in reinstall.sh
# What does this PR do ?

keeping it would make installation log misleading like below. It'd better remove it.
```
(nemo) xueyang@DEV:~/workspace/NeMo:(main)$ ./reinstall.sh
Uninstalling stuff
Found existing installation: nemo-toolkit 1.18.0rc0
Uninstalling nemo-toolkit-1.18.0rc0:
  Successfully uninstalled nemo-toolkit-1.18.0rc0
Found existing installation: sacrebleu 2.3.1
Uninstalling sacrebleu-2.3.1:
  Successfully uninstalled sacrebleu-2.3.1
WARNING: Skipping nemo_asr as it is not installed.
WARNING: Skipping nemo_nlp as it is not installed.
WARNING: Skipping nemo_tts as it is not installed.
Looking in indexes: https://pypi.org/simple, https://pypi.ngc.nvidia.com/
Requirement already satisfied: setuptools in /home/xueyang/miniconda3/envs/nemo/lib/python3.8/site-packages (65.5.1)
Collecting setuptools
  Downloading setuptools-67.7.2-py3-none-any.whl (1.1 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.1/1.1 MB 50.8 MB/s eta 0:00:00
Installing collected packages: setuptools
  Attempting uninstall: setuptools
    Found existing installation: setuptools 65.5.1
    Uninstalling setuptools-65.5.1:
      Successfully uninstalled setuptools-65.5.1
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
nemo-text-processing 0.1.7rc0 requires setuptools==65.5.1, but you have setuptools 67.7.2 which is incompatible.
Successfully installed setuptools-67.7.2

[notice] A new release of pip is available: 22.2.2 -> 23.1.2
[notice] To update, run: pip install --upgrade pip
```
**Collection**: [Note which collection this PR will affect]

# Changelog 
- Add specific line by line info of high level changes in this PR.

# Usage
* You can potentially add a usage example below

```python
# Add a code snippet demonstrating how to use this 
```

# Before your PR is "Ready for review"
**Pre checks**:
- [x] Make sure you read and followed [Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md)
- [ ] Did you write any new necessary tests?
- [ ] Did you add or update any necessary documentation?
- [ ] Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  - [ ] Reviewer: Does the PR have correct import guards for all optional libraries?
  
**PR Type**:
- [ ] New Feature
- [ ] Bugfix
- [ ] Documentation

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# Additional Information
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