Fix grammar abort & Minor style fixes (#7204)

python/sglang/srt/layers/radix_attention.py

@@ -18,7 +18,6 @@ from typing import Optional
 
 from torch import nn
 
-from sglang.srt.layers.linear import UnquantizedLinearMethod
 from sglang.srt.layers.quantization.base_config import QuantizationConfig
 from sglang.srt.model_executor.forward_batch_info import ForwardBatch
 
@@ -52,9 +51,9 @@ class RadixAttention(nn.Module):
         sliding_window_size: int = -1,
         is_cross_attention: bool = False,
         quant_config: Optional[QuantizationConfig] = None,
-        attn_type=AttentionType.DECODER,
-        prefix: str = "",
+        attn_type: AttentionType = AttentionType.DECODER,
         use_irope: bool = False,
+        prefix: str = "",
     ):
         super().__init__()
         self.tp_q_head_num = num_heads