Remove manual scope handling with ThreadPoolExecutor

[alexander-alderman-webb]

Now we merged getsentry/sentry-python#4770 in the Python SDK, code like the snippet below can be simplified. The SDK now automatically forks the relevant scopes when a function is submitted to the executor.

sentry/src/sentry/utils/snuba.py

Lines 1179 to 1195 in dab07bb

	with ThreadPoolExecutor(
	thread_name_prefix=__name__,
	max_workers=10,
	) as query_thread_pool:
	query_results = list(
	query_thread_pool.map(
	_snuba_query,
	[
	(
	sentry_sdk.get_isolation_scope(),
	sentry_sdk.get_current_scope(),
	snuba_request,
	)
	for snuba_request in snuba_requests_list
	],
	)
	)

[linear]

ENG-5740