ref(aiohttp): Remove dead segment name code

[mjq]

The aiohttp integration currently has a dead branch that looks live:

sentry-python/sentry_sdk/integrations/aiohttp.py

Lines 341 to 356 in 8e6d73b

	if name is not None:
	current_span = sentry_sdk.get_current_span()
	if isinstance(current_span, StreamedSpan) and not isinstance(
	current_span, NoOpStreamedSpan
	):
	current_span._segment.name = name
	current_span._segment.set_attribute(
	"sentry.segment.name.source",
	SEGMENT_SOURCE_FOR_STYLE[integration.transaction_style].value,
	)
	else:
	current_scope = sentry_sdk.get_current_scope()
	current_scope.set_transaction_name(
	name,
	source=SOURCE_FOR_STYLE[integration.transaction_style],
	)

isinstance(current_span, StreamedSpan) is always false, so the first branch never matches. sentry_sdk.get_current_span() does not return StreamedSpans. (It reads from scope.span, but the streamed span is in scope.streamed_span).

This doesn't functionally matter, because even though we always fall through to the else branch, set_transaction_name already handles the streamed span case (including the name and source). This is tested in test_transaction_style_span_streaming already.

Remove the misleading branch.

[cursor]

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[github-actions]

Codecov Results 📊

✅ 119060 passed | ⏭️ 6762 skipped | Total: 125822 | Pass Rate: 94.63% | Execution Time: 442m 34s

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2483 uncovered lines.
✅ Project coverage is 90.3%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.29%    90.30%    +0.01%
==========================================
  Files          193       193         —
  Lines        25601     25596        -5
  Branches      9436      9434        -2
==========================================
+ Hits         23116     23113        -3
- Misses        2485      2483        -2
- Partials      1435      1434        -1

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