Remove unused imports

gradio_app.py

@@ -1,11 +1,9 @@
 import os
 import sys
 import time
-import uuid
 import hashlib
 import site
 import subprocess
-from pathlib import Path
 
 import gradio as gr
 import torch
@@ -15,10 +13,13 @@ import numpy as np
 from underthesea import sent_tokenize
 from df.enhance import enhance, init_df, load_audio, save_audio
 
-from huggingface_hub import hf_hub_download, snapshot_download
+from huggingface_hub import snapshot_download
 
 from langdetect import detect
 
+from TTS.tts.configs.xtts_config import XttsConfig
+from TTS.tts.models.xtts import Xtts
+
 from utils.vietnamese_normalization import normalize_vietnamese_text
 from utils.logger import setup_logger
 from utils.sentence import split_sentence, merge_sentences
@@ -68,8 +69,6 @@ xtts_model = None
 def load_model():
     global xtts_model
     
-    from TTS.tts.configs.xtts_config import XttsConfig
-    from TTS.tts.models.xtts import Xtts
     repo_id = "jimmyvu/xtts"
     snapshot_download(repo_id=repo_id, 
                       local_dir=checkpoint_dir,