Fix Windows non-UTF source filenames (#4524)

Co-authored-by: Kayzwer <68285002+Kayzwer@users.noreply.github.com>

ultralytics/nn/tasks.py

@@ -261,7 +261,6 @@ class DetectionModel(BaseModel):
         for si, fi in zip(s, f):
             xi = scale_img(x.flip(fi) if fi else x, si, gs=int(self.stride.max()))
             yi = super().predict(xi)[0]  # forward
-            # cv2.imwrite(f'img_{si}.jpg', 255 * xi[0].cpu().numpy().transpose((1, 2, 0))[:, :, ::-1])  # save
             yi = self._descale_pred(yi, fi, si, img_size)
             y.append(yi)
         y = self._clip_augmented(y)  # clip augmented tails