chore(asyncio): Drop transactions

[sentrivana]

Closes https://linear.app/getsentry/issue/PY-2680/remove-transaction-based-tracing-from-asyncio

[linear-code]

PY-2680

[github-actions]

Codecov Results 📊

✅ 117009 passed | ⏭️ 5544 skipped | Total: 122553 | Pass Rate: 95.48% | Execution Time: 391m 35s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -14961
Passed Tests	📉 -13393
Failed Tests	📉 -2
Skipped Tests	📉 -1566

➖ Removed Tests (2)

View removed tests

• test_continuous_profiler_auto_start_and_stop_sampled[experiment-thread]
  • File: tests.profiler.test_continuous_profiler
• test_continuous_profiler_auto_start_and_stop_sampled[non-experiment-gevent]
  • File: tests.profiler.test_continuous_profiler

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2261 uncovered lines.
✅ Project coverage is 90.42%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.24%    90.42%    +0.18%
==========================================
  Files          193       185        -8
  Lines        25677     23612     -2065
  Branches      9466      8664      -802
==========================================
+ Hits         23172     21351     -1821
- Misses        2505      2261      -244
- Partials      1441      1371       -70

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