test: Clean up tests

[sentrivana]

• Remove skipifs that are not necessary anymore (because they skip running the test case against framework versions we've now dropped)
• Remove flaky skipped threading test

[github-actions]

Codecov Results 📊

✅ 94098 passed | ⏭️ 5195 skipped | Total: 99293 | Pass Rate: 94.77% | Execution Time: 331m 3s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -6344
Passed Tests	📉 -5059
Failed Tests	📉 -1
Skipped Tests	📉 -1284

➖ Removed Tests (1)

View removed tests

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

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2291 uncovered lines.
✅ Project coverage is 90.29%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.00%    90.29%    +0.29%
==========================================
  Files          193       185        -8
  Lines        24946     23593     -1353
  Branches      9000      8552      -448
==========================================
+ Hits         22451     21302     -1149
- Misses        2495      2291      -204
- Partials      1435      1379       -56

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Generated by Codecov Action

[cursor]

Cursor Bugbot has reviewed your changes and found 2 potential issues.

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^{Reviewed by Cursor Bugbot for commit 1bc330d. Configure here.}