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

python/sglang/srt/models/yivl.py

@@ -20,7 +20,6 @@ from typing import Iterable, Optional, Tuple
 import torch
 import torch.nn as nn
 from transformers import CLIPVisionModel, LlavaConfig
-from vllm.config import CacheConfig
 from vllm.model_executor.model_loader.weight_utils import default_weight_loader
 
 from sglang.srt.layers.quantization.base_config import QuantizationConfig
@@ -32,7 +31,7 @@ class YiVLForCausalLM(LlavaLlamaForCausalLM):
         self,
         config: LlavaConfig,
         quant_config: Optional[QuantizationConfig] = None,
-        cache_config: Optional[CacheConfig] = None,
+        cache_config=None,
     ) -> None:
         super().__init__(config, quant_config, cache_config)