Revert "[None][fix] restore pytest collection compatibility"

This reverts commit 5eb3254.

Signed-off-by: Fanrong Li <lfr-0531@users.noreply.github.com>

Author: lfr-0531

tests/unittest/conftest.py

@@ -337,12 +337,12 @@ def torch_empty_cache() -> None:
         torch.cuda.empty_cache()
 
 
-@pytest.fixture(scope="module")
+@pytest.fixture(scope="module", params=[2, 4, 8])
 def mpi_pool_executor(request):
     """
     Start an MPIPoolExecutor with `request.param` workers.
     """
-    num_workers = getattr(request, "param", 2)
+    num_workers = request.param
     with MPIPoolExecutor(num_workers) as executor:
         # make the number of workers visible to tests
         setattr(executor, "num_workers", num_workers)

tests/unittest/llmapi/test_llm_pytorch.py

@@ -67,7 +67,7 @@
 
 
 @force_ampere
-@pytest.mark.parametrize("enable_chunked_prefill", [False, True])
+@pytest.mark.parametrize("enable_chunked_prefill,", [False, True])
 @pytest.mark.part2
 def test_tinyllama_logits_processor(enable_chunked_prefill):
     tinyllama_logits_processor_test_harness(