remove unneded imports and type signature

modules/postprocessing.py

 import os
-import tempfile
-from typing import List
 
 from PIL import Image
 
@@ -8,7 +6,7 @@ from modules import shared, images, devices, scripts, scripts_postprocessing, ui
 from modules.shared import opts
 
 
-def run_postprocessing(extras_mode, image, image_folder: List[tempfile.NamedTemporaryFile], input_dir, output_dir, show_extras_results, *args, save_output: bool = True):
+def run_postprocessing(extras_mode, image, image_folder, input_dir, output_dir, show_extras_results, *args, save_output: bool = True):
     devices.torch_gc()
 
     shared.state.begin()