chore: Remove ai.monitoring.record_token_usage()

[alexander-alderman-webb]

Description

Delete the ai.monitoring module.

Issues

Closes #6894

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 📊

✅ 55393 passed | ❌ 1 failed | ⏭️ 2727 skipped | Total: 58121 | Pass Rate: 95.31% | Execution Time: 155m 14s

📊 Comparison with Base Branch

Metric	Change
Total Tests	📉 -82606
Passed Tests	📉 -78058
Failed Tests	📈 +1
Skipped Tests	📉 -4549

➕ New Tests (1)

View new tests

• test_spans_from_multiple_threads[propagate_scope=True]
  • File: tests.integrations.threading.test_threading
  • Status: ❌ Failing

❌ Failed Tests

test_spans_from_multiple_threads[propagate_scope=True]

File: tests.integrations.threading.test_threading
Suite: py3.8-common
Error: AssertionError: assert '84a763fb89baa7bf' == '9306aee2f2d7c7c3' - 9306aee2f2d7c7c3 + 84a763fb89baa7bf

Stack Trace

tests/integrations/threading/test_threading.py:176: in test_spans_from_multiple_threads
    assert span["parent_span_id"] == outer_submit_spans[num].span_id
E   AssertionError: assert '84a763fb89baa7bf' == '9306aee2f2d7c7c3'
E     
E     - 9306aee2f2d7c7c3
E     + 84a763fb89baa7bf

✅ Patch coverage is 100.00%. Project has 2074 uncovered lines.
❌ Project coverage is 89.99%. Comparing base (a8b4d0a) to head (f162ed2).

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.29%    89.99%     -0.3%
==========================================
  Files          202       184       -18
  Lines        26625     20717     -5908
  Branches      9926      7172     -2754
==========================================
+ Hits         24039     18643     -5396
- Misses        2586      2074      -512
- Partials      1515      1235      -280

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Generated by Codecov Action

[alexander-alderman-webb]

I'll inline on master instead so we can deprecate.