chore(tests): drop stale tracking tags from test annotations

Remove leftover per-test tracking tags from a few test docstrings and
comments; they carried no information for readers of the suite.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: OmarAlJarrah

packages/dexpace-sdk-core/tests/auth/test_challenge_immutability.py

@@ -1,7 +1,7 @@
 # Copyright (c) 2026 dexpace and Omar Aljarrah.
 # Licensed under the MIT License. See LICENSE.md in the repository root for details.
 
-"""Tests for the read-only parameter view on parsed challenges (Nit48).
+"""Tests for the read-only parameter view on parsed challenges.
 
 ``AuthenticateChallenge`` is a frozen dataclass; its ``parameters`` mapping
 produced by ``parse_challenges`` must likewise be immutable so the object is

packages/dexpace-sdk-core/tests/http/test_async_bodies.py

@@ -143,7 +143,7 @@ async def test_async_request_aiter_bytes_rejects_invalid_chunk_size(
     size: int,
 ) -> None:
     # All three AsyncRequestBody backings must reject a non-positive chunk_size
-    # up front, matching the sync and response-body guard (M9).
+    # up front, matching the sync and response-body guard.
     body = factory()
     with pytest.raises(ValueError, match="chunk_size"):
         async for _ in body.aiter_bytes(size):

packages/dexpace-sdk-core/tests/http/test_async_cancellation.py

@@ -71,7 +71,7 @@ async def consume() -> None:
 
 
 async def test_request_aiter_bytes_releases_stream_and_propagates_when_cancelled() -> None:
-    # M10: the request-side stream body must shield its close just like the
+    # The request-side stream body must shield its close just like the
     # response side, so a cancel mid-read still releases the upstream stream.
     stream = _SlowStream()
     body = AsyncRequestBody.from_async_stream(stream)