remove useless patch (#4699)

patach_config is useless now. Let's remove it


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

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

tests/e2e/singlecard/spec_decode_v1/test_v1_mtp_correctness.py

@@ -56,7 +56,7 @@ def mtp_correctness(sampling_config: SamplingParams,
                     enable_expert_parallel=True,
                     speculative_config={
                         "method":
-                        "deepseek_mtp",
+                        "mtp",
                         "num_speculative_tokens":
                         num_speculative_tokens,
                         "disable_padded_drafter_batch":

tests/e2e/singlecard/spec_decode_v1/test_v1_mtp_torchair_correctness.py

@@ -58,7 +58,7 @@ def mtp_torchair_correctness(
                     distributed_executor_backend="mp",
                     enable_expert_parallel=True,
                     speculative_config={
-                        "method": "deepseek_mtp",
+                        "method": "mtp",
                         "num_speculative_tokens": 1,
                     },
                     enforce_eager=False,