feat: revert disabling persistent style sorting, code cleanup

modules/meta_parser.py

@@ -9,7 +9,6 @@ from PIL import Image
 import fooocus_version
 import modules.config
 import modules.sdxl_styles
-from modules import hash_cache
 from modules.flags import MetadataScheme, Performance, Steps
 from modules.flags import SAMPLERS, CIVITAI_NO_KARRAS
 from modules.hash_cache import sha256_from_cache

modules/style_sorter.py

@@ -37,7 +37,6 @@ def sort_styles(selected):
     global all_styles
     unselected = [y for y in all_styles if y not in selected]
     sorted_styles = selected + unselected
-    """
     try:
         with open('sorted_styles.json', 'wt', encoding='utf-8') as fp:
             json.dump(sorted_styles, fp, indent=4)
@@ -45,7 +44,6 @@ def sort_styles(selected):
         print('Write style sorting failed.')
         print(e)
     all_styles = sorted_styles
-    """
     return gr.CheckboxGroup.update(choices=sorted_styles)