[5/N][Attention] Finish eliminating vllm/attention folder (#32064)

Signed-off-by: Matthew Bonanni <mbonanni@redhat.com>

vllm/model_executor/model_loader/utils.py

@@ -11,9 +11,9 @@ import torch
 from torch import nn
 from typing_extensions import assert_never
 
-from vllm.attention.layer import Attention, MLAAttention
 from vllm.config import ModelConfig, VllmConfig, set_current_vllm_config
 from vllm.logger import init_logger
+from vllm.model_executor.layers.attention import Attention, MLAAttention
 from vllm.model_executor.layers.quantization.base_config import (
     QuantizationConfig,
     QuantizeMethodBase,