Update custom model files, README, and requirements

asr_modeling.py

@@ -38,8 +38,6 @@ class ASRModel(PreTrainedModel, GenerationMixin):
     @classmethod
     def from_pretrained(cls, pretrained_model_name_or_path, *args, **kwargs):
         """Load model from pretrained, handling device placement correctly."""
-        from pathlib import Path
-
         from safetensors.torch import load_file
         from transformers.utils.hub import cached_file