Revert "drop ascend scheduler" (#4580)

Reverts vllm-project/vllm-ascend#4498
- vLLM version: v0.11.2
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.2

tests/ut/quantization/test_w8a8_dynamic.py

@@ -33,6 +33,13 @@ class TestAscendW8A8FusedMoEMethod(TestBase):
             mock_get_ep_group.return_value = mock_ep_group
             mock_ascend_config = Mock()
 
+            # 创建一个具有具体属性的 Mock 对象来表示 ascend_scheduler_config
+            mock_ascend_scheduler_config = Mock()
+            mock_ascend_scheduler_config.enabled = False
+            mock_ascend_scheduler_config.max_num_batched_tokens = 1024
+            mock_ascend_scheduler_config.max_model_len = 2048
+            mock_ascend_config.ascend_scheduler_config = mock_ascend_scheduler_config
+
             mock_ascend_config.torchair_graph_config = Mock(enabled=False)
             mock_ascend_config.enable_chunked_prefill = False
             mock_get_ascend_config.return_value = mock_ascend_config