Removing unnecessary lines
<!-- pylint-output-strict-mode-false -->

beep boop 🤖: 🙏 The following files have warnings. In case you are familiar with these, please try helping us to improve the code base.

---

Your code was analyzed with PyLint. The following annotations have been identified:

```
************* Module nemo.collections.asr.data.audio_to_text_dataset
nemo/collections/asr/data/audio_to_text_dataset.py:252:0: C0301: Line too long (148/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:339:0: C0301: Line too long (175/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:433:0: C0301: Line too long (173/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:505:0: C0301: Line too long (125/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:556:0: C0301: Line too long (125/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:909:0: C0301: Line too long (130/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:921:0: C0301: Line too long (127/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:929:0: C0301: Line too long (125/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:943:0: C0301: Line too long (149/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:955:0: C0301: Line too long (152/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:981:0: C0301: Line too long (126/119) (line-too-long)
nemo/collections/asr/data/audio_to_text_dataset.py:405:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:845:0: C0115: Missing class docstring (missing-class-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:852:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:893:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:898:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:916:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/collections/asr/data/audio_to_text_dataset.py:947:0: C0116: Missing function or method docstring (missing-function-docstring)

-----------------------------------
Your code has been rated at 9.46/10
```

---

Thank you for improving NeMo's documentation! [🤖]: Hi @nune-tadevosyan 👋,

We wanted to let you know that a [CICD pipeline](https://github.com/NVIDIA/NeMo/actions/runs/12064498223) for this PR just finished successfully

So it might be time to merge this PR or get some approvals

I'm just a bot so I'll leave it you what to do next.

//cc @pablo-garay @ko3n1g
# What does this PR do ?

Add a one line overview of what this PR aims to accomplish.

**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 
```

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To re-run CI remove and add the label again.
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# Before your PR is "Ready for review"
**Pre checks**:
- [ ] 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

If you haven't finished some of the above items you can still open "Draft" PR.


## Who can review?

Anyone in the community is free to review the PR once the checks have passed. 
[Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md) contains specific people who can review PRs to various areas.

# Additional Information
* Related to # (issue)
