chore(stdlib): Remove transaction-based tracing

[alexander-alderman-webb]

Description

Closes #7117

Issues

Reminders

• Please add tests to validate your changes, and lint your code using uv run ruff.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[github-actions]

Codecov Results 📊

✅ 105292 passed | ⏭️ 5464 skipped | Total: 110756 | Pass Rate: 95.07% | Execution Time: 366m 24s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -9296
Passed Tests	📉 -7991
Failed Tests	—
Skipped Tests	📉 -1305

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2271 uncovered lines.
✅ Project coverage is 90.48%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.23%    90.48%    +0.25%
==========================================
  Files          193       185        -8
  Lines        25423     23856     -1567
  Branches      9336      8776      -560
==========================================
+ Hits         22940     21585     -1355
- Misses        2483      2271      -212
- Partials      1437      1377       -60

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Generated by Codecov Action

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