revert: "Merge branch 'dev' into main"

[terrykong]

This reverts commit 3267060, reversing changes made to c69b872.

Pushing the update branch on #413 actually created a merge commit on main, which should not have been allowed.

What does this PR do ?

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Changelog

• Please update the CHANGELOG.md under next version with high level changes in this PR.

Usage

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Pre checks:

• Make sure you read and followed Contributor guidelines
• Did you write any new necessary tests?
• Did you add or update any necessary documentation? Make sure to also update the NeMo Framework User Guide which contains the tutorials

Checklist when contributing a new algorithm

• Does the trainer resume and restore model state all states?
• Does the trainer support all parallelism techniques(PP, TP, DP)?
• Does the trainer support max_steps=-1 and validation?
• Does the trainer only call APIs defined in alignable_interface.py?
• Does the trainer have proper logging?

Additional Information

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