Fix flake8 issue

Author: sodre

src/darknet/py/__init__.py

@@ -1,6 +1,5 @@
 """Top-level package for DarkNet OpenSource Neural Networks in Python."""
 from ._version import version as __version__  # noqa: F401
-from .network import Network
 from .classifier import Classifier, ImageClassifier
 from .detector import ImageDetector