cleanup; remove unused imports

my/coding/codeforces.py

@@ -3,13 +3,12 @@ from my.config import codeforces as config
 
 from datetime import datetime
 from typing import NamedTuple
-from pathlib import Path
 import json
-from typing import Dict, Iterator, Any
+from typing import Dict, Iterator
 
 from ..common import cproperty, get_files
 from ..error import Res, unwrap
-from ..core.konsume import zoom, ignore, wrap
+from ..core.konsume import ignore, wrap
 
 from kython import fget
 # TODO remove