removed unnecessary torch import on line 115

as per kohya-ss#1290

Author: frodo821

finetune/tag_images_by_wd14_tagger.py

@@ -112,7 +112,6 @@ def main(args):
 
     # モデルを読み込む
     if args.onnx:
-        import torch
         import onnx
         import onnxruntime as ort