[Refactor] Clean up parallel runtime comments (#40632)

test/registered/unit/layers/attention/test_flashattention_pa_swa_prefill_lens_size.py

@@ -93,8 +93,6 @@ def _make_prefill_aware_swa_runner(
         page_size=1,
         attn_cp_size=1,
         tp_size=1,
-        # The backend still reads the runner's frozen record for these two;
-        # same single-rank placement, stated where it looks for it.
         ps=SimpleNamespace(attn_cp_size=1, tp_size=1),
         is_draft_worker=False,
         server_args=server_args,

test/registered/unit/layers/quantization/test_mxfp4_sm100_trtllm_gen.py

@@ -33,12 +33,7 @@ GROUP_SIZE = 32  # MXFP4 block size
 
 @pytest.fixture
 def stated_tp_group():
-    """A TP group for a test that runs in a process without one.
-
-    The production call passes the group *into* `use_symmetric_memory`, so
-    stubbing that context manager does not stop the read -- the argument is
-    evaluated first. Stating it on the context answers every spelling.
-    """
+    """Provide a TP-group placeholder for kernels with mocked symmetric memory."""
     from sglang.srt.runtime_context import get_parallel
 
     with get_parallel().override(tp_group=None):

test/registered/unit/layers/quantization/test_mxfp4_sm120_cutlass.py

@@ -19,12 +19,7 @@ register_cuda_ci(est_time=14, stage="base-b", runner_config="1-gpu-small")
 
 @pytest.fixture
 def stated_tp_group():
-    """A TP group for a test that runs in a process without one.
-
-    The production call passes the group *into* `use_symmetric_memory`, so
-    stubbing that context manager does not stop the read -- the argument is
-    evaluated first. Stating it on the context answers every spelling.
-    """
+    """Provide a TP-group placeholder for kernels with mocked symmetric memory."""
     from sglang.srt.runtime_context import get_parallel
 
     with get_parallel().override(tp_group=None):

test/registered/unit/layers/quantization/test_mxfp4_sm90_cutlass.py

@@ -65,12 +65,7 @@ GROUP_SIZE = 32  # MXFP4 block size
 
 @pytest.fixture
 def stated_tp_group():
-    """A TP group for a test that runs in a process without one.
-
-    The production call passes the group *into* `use_symmetric_memory`, so
-    stubbing that context manager does not stop the read -- the argument is
-    evaluated first. Stating it on the context answers every spelling.
-    """
+    """Provide a TP-group placeholder for kernels with mocked symmetric memory."""
     from sglang.srt.runtime_context import get_parallel
 
     with get_parallel().override(tp_group=None):