Unreachable assertion in test_conf_async_trio_requests

[langston-barrett]

This assert follows a return, so it's trivially unreachable:

msrest-for-python/tests/asynctests/test_universal_http.py

Lines 84 to 85 in 8896f85

	return await sender.send(request)
	assert response.body() is not None

[lmazuel]

Thanks! That's true, but not critical, so keeping this issue open for the next time I do a batch of changes in tests ;)