chore(integrations): remove deprecated internal modules [asyncio,gevent]

[mabdinur]

• Removes deprecated asyncio modules that are no longer used
• Removes deprecated gevent modules that are no longer used

All removed code are defined in internal modules and are not exposed in our public api. This is not a breaking change. This change can go out in a minor release.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-02-06 22:26:44

Comparing candidate commit 7fda1a7 in PR branch munir/remove-deprecated-integrations with baseline commit 1247ac2 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 394 metrics, 2 unstable metrics.

[github-actions]

CODEOWNERS have been resolved as:

tests/contrib/asyncio/test_tracer.py                                    @DataDog/apm-core-python @DataDog/apm-idm-python