Update examples

Signed-off-by: Beat Buesser <[email protected]>

Author: beat-buesser

examples/application_object_detection.py

@@ -3,8 +3,7 @@
 import matplotlib.pyplot as plt
 
 from art.estimators.object_detection import PyTorchFasterRCNN
-from art.estimators.object_detection.pytorch_yolo import PyTorchYolo
-from art.attacks.evasion import ProjectedGradientDescent, AdversarialPatchPyTorch
+from art.attacks.evasion import ProjectedGradientDescent
 
 COCO_INSTANCE_CATEGORY_NAMES = [
     "__background__",