[1/N] Remove CacheConfig import in all model files (#1658)

python/sglang/srt/models/olmoe.py

@@ -23,7 +23,6 @@ import torch
 import torch.nn.functional as F
 from torch import nn
 from transformers import PretrainedConfig
-from vllm.config import CacheConfig
 from vllm.distributed import (
     get_tensor_model_parallel_world_size,
     tensor_model_parallel_all_reduce,
@@ -298,7 +297,7 @@ class OlmoeForCausalLM(nn.Module):
     def __init__(
         self,
         config: PretrainedConfig,
-        cache_config: Optional[CacheConfig] = None,
+        cache_config=None,
         quant_config: Optional[QuantizationConfig] = None,
     ) -> None:
         super().__init__()