chore: drop unused test mark

tests/test_time.py

@@ -1,11 +1,8 @@
-import pytest
 import re
 
 day = r"([0][7-9]|[1][0-6])"
 night = r"([0][0-6]|[1][7-9]|[2][0-3])"
 
-pytestmark = pytest.mark.FOO
-
 def iterate(h: str, r: str) -> None:
     for m in range(60):
         time = f"{h:02}:{m:02}"