diff --git a/vllm/envs.py b/vllm/envs.py
index cd545f32c4301..dc23c8ea5314d 100644
--- a/vllm/envs.py
+++ b/vllm/envs.py
@@ -811,10 +811,6 @@ environment_variables: dict[str, Callable[[], Any]] = {
     # all2all backend for vllm's expert parallel communication
     "VLLM_ALL2ALL_BACKEND":
     lambda: os.getenv("VLLM_ALL2ALL_BACKEND", "naive"),
-
-    # check that the cudagraphs input addresses are correct before replaying
-    "VLLM_CUDAGRAPH_SANITIZER":
-    lambda: os.getenv("VLLM_CUDAGRAPH_SANITIZER", "0") == "1",
 }
 
 # end-env-vars-definition
diff --git a/vllm/model_executor/layers/fused_moe/layer.py b/vllm/model_executor/layers/fused_moe/layer.py
index 822bde906dc97..f1cb77f64eae7 100644
--- a/vllm/model_executor/layers/fused_moe/layer.py
+++ b/vllm/model_executor/layers/fused_moe/layer.py
@@ -29,7 +29,6 @@ from vllm.model_executor.utils import set_weight_attrs
 from vllm.platforms import current_platform
 from vllm.platforms.interface import CpuArchEnum
 from vllm.utils import direct_register_custom_op
-from vllm.v1.worker.ubatching import get_current_ubatch_context
 
 has_pplx = importlib.util.find_spec("pplx_kernels") is not None
 
@@ -306,6 +305,7 @@ class AllToAllCache:
                 self._cache[key] = instance
             return instance
 
+
 # Global singleton
 _all_to_all_cache = AllToAllCache()