Resolve "AttributeError at /about/: 'AnonymousUser' object has no attribute 'person'"

Closes #683 (closed)

aleksis/core/util/core_helpers.py

@@ -321,11 +321,6 @@ def generate_random_code(length, packet_size) -> str:
     return get_random_string(packet_size * length).lower()
 
 
-def unread_notifications_badge(request: HttpRequest) -> int:
-    """Generate badge content with the number of unread notifications."""
-    return request.user.person.unread_notifications_count
-
-
 def monkey_patch() -> None:  # noqa
     """Monkey-patch dependencies for special behaviour."""
     # Unwrap promises in JSON serializer instead of stringifying