Drop torchair (#4814)

aclgraph is stable and fast now. Let's drop torchair graph mode now.

TODO: some logic to adapt torchair should be cleaned up as well. We'll
do it in the following PR.

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>
Co-authored-by: Mengqing Cao <cmq0113@163.com>

tests/ut/ops/test_rotary_embedding.py

@@ -110,11 +110,6 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     def test_rope_forward_oot_custom_kernel(self, mock_rotary_embedding,
                                             mock_custom_enabled,
                                             mock_soc_version, mock__c):
-        mock_config = MagicMock()
-        mock_config.torchair_graph_config.enabled = False
-
-        # Setup mock for custom kernel path
-
         mock__c.rotary_embedding.return_value = self.query, self.key
         vllm_config = VllmConfig()
         model_config = ModelConfig(MODEL,
@@ -139,9 +134,6 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     @patch('vllm.distributed.parallel_state._TP', MagicMock(world_size=1))
     def test_rope_forward_oot_contiguous(self, mock_npu_rotary,
                                          mock_custom_enabled):
-        mock_config = MagicMock()
-        mock_config.torchair_graph_config.enabled = False
-
         # Test contiguous path when custom is disabled
         non_contig_query = self.query.transpose(0, 1)
         non_contig_key = self.key.transpose(0, 1)
@@ -165,9 +157,6 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     @patch('vllm.distributed.parallel_state._DP', MagicMock(world_size=1))
     @patch('vllm.distributed.parallel_state._TP', MagicMock(world_size=1))
     def test_rope_forward_oot_with_offsets(self):
-        mock_config = MagicMock()
-        mock_config.torchair_graph_config.enabled = False
-
         # Test that NotImplementedError is raised when offsets is provided
         offsets = torch.tensor([1, 2, 3])
         with self.assertRaises(NotImplementedError):
@@ -190,9 +179,6 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     @patch('vllm.distributed.parallel_state._TP', MagicMock(world_size=1))
     def test_rope_forward_oot_neox_style_override(self, mock_npu_rotary,
                                                   mock_custom_enabled):
-        mock_config = MagicMock()
-        mock_config.torchair_graph_config.enabled = False
-
         # Test neox_style override
         vllm_config = VllmConfig()
         model_config = ModelConfig(MODEL,
@@ -219,9 +205,6 @@ class TestAscendRotaryEmbedding(unittest.TestCase):
     @patch('vllm.distributed.parallel_state._TP', MagicMock(world_size=1))
     def test_rope_forward_oot_rotary_dim_less_than_head_size(
             self, mock_npu_rotary, mock_custom_enabled):
-        mock_config = MagicMock()
-        mock_config.torchair_graph_config.enabled = False
-
         # test case when rotary_dim < head_size
         org_rotary_dim = self.layer.rotary_dim
         self.layer.rotary_dim = self.layer.head_size // 2
@@ -415,7 +398,6 @@ class TestAscendMRotaryEmbedding(unittest.TestCase):
                                       mrope_section=self.mrope_section)
 
         self.mock_config = MagicMock()
-        self.mock_config.torchair_graph_config.enabled = False
 
     def _create_vllm_config(self):
         vllm_config = VllmConfig()