[Bugfix] Fix aclgraph not enabled by default (#2590)

### What this PR does / why we need it?
As vllm will set `cudagraph_mode` to `NONE` before
`check_and_update_config` in post init of `VllmConfig`
(5da4f5d857/vllm/config/__init__.py (L3630)),
we always have `cudagraph_mode` isn't `None`, thus we must remove this
check and add it when the related adaption in vllm is done.

part of https://github.com/vllm-project/vllm-ascend/pull/2577, will add
the e2e test on applying reply after the CI refactor is done

### How was this patch tested?
CI passed with existing test.

- vLLM version: v0.10.1.1
- vLLM main:
f48a9af892

Signed-off-by: MengqingCao <cmq0113@163.com>

vllm_ascend/compilation/acl_graph.py

@@ -13,12 +13,10 @@ from vllm.compilation.cuda_graph import CUDAGraphOptions
 from vllm.compilation.monitor import validate_cudagraph_capturing_enabled
 from vllm.config import CUDAGraphMode, VllmConfig
 from vllm.forward_context import BatchDescriptor, get_forward_context
-from vllm.logger import init_logger
+from vllm.logger import logger
 from vllm.platforms import current_platform
 from vllm.utils import weak_ref_tensors
 
-logger = init_logger(__name__)
-
 
 @dataclasses.dataclass
 class ACLGraphEntry:
@@ -182,5 +180,6 @@ class ACLGraphWrapper:
                 f"during replay. Expected {entry.input_addresses}, "
                 f"got {new_input_addresses}")
 
+        logger.info_once("Replaying aclgraph")
         entry.aclgraph.replay()
         return entry.output