Remove unused TensorFlow env var

[Sai-Suraj-27]

What does this PR do?

Removes TensorFlow's "TF_CPP_MIN_LOG_LEVEL" env var. This is no longer needed since TF/Jax are gone.

This utils/print_env.py script is being used in CI running tests to print, req useful env vars.

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Who can review?

@Rocketknight1 @vasqu

[vasqu]

thx lgtm 👍

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