Stop packaging integrations for Python 2

[iliakur]

What does this PR do?

Motivation

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Changelog entries must be created for modifications to shipped code
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[github-actions]

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[github-actions]

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[steveny91]

Looks good to me. But just to summarize the changes:

• Delete py2 classifier tags
• Changelog entries about dropping py2
• Delete any py2 specific setup.py files
• Cleaned up deps that were py2 specific

That correct?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.39%. Comparing base (decefb4) to head (2ae4bfa).
Report is 6 commits behind head on master.

Additional details and impacted files

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