python linter fixes

modules/ui.py

@@ -974,7 +974,7 @@ def create_ui():
                 ],
                 show_progress=False,
             )
-            
+
             img2img_interrogate.click(
                 fn=lambda *args: process_interrogate(interrogate, *args),
                 **interrogate_args,

modules/ui_extra_networks.py

@@ -1,7 +1,6 @@
 import os.path
 import urllib.parse
 from pathlib import Path
-from PIL import PngImagePlugin
 
 from modules import shared
 from modules.images import read_info_from_image, save_image_with_geninfo