Remove all references to yapf as it's no longer used (#26251)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

vllm/model_executor/models/gemma3_mm.py

@@ -22,8 +22,6 @@ from vllm.multimodal.inputs import (
     MultiModalKwargsItems,
 )
 from vllm.multimodal.parse import ImageProcessorItems, ImageSize, MultiModalDataItems
-
-# yapf: disable
 from vllm.multimodal.processing import (
     BaseMultiModalProcessor,
     BaseProcessingInfo,
@@ -35,8 +33,6 @@ from vllm.multimodal.processing import (
     PromptUpdateDetails,
     replace_token_matches,
 )
-
-# yapf: enable
 from vllm.multimodal.profiling import BaseDummyInputsBuilder
 from vllm.sequence import IntermediateTensors
 from vllm.utils.tensor_schema import TensorSchema, TensorShape