Remove unused ensure_aware() function

src/tinuous/util.py

@@ -16,13 +16,6 @@
 log = logging.getLogger("tinuous")
 
 
-def ensure_aware(dt: datetime) -> datetime:
- # Pygithub returns naïve datetimes for timestamps with a "Z" suffix. Until
- # that's fixed <https://github.com/PyGithub/PyGithub/pull/1831>, we need to
- # make such datetimes timezone-aware manually.
- return dt.replace(tzinfo=timezone.utc) if dt.tzinfo is None else dt
-
-
 def removeprefix(s: str, prefix: str) -> str:
  n = len(prefix)
  return s[n:] if s[:n] == prefix else s