Update app.py

app.py

@@ -9,12 +9,10 @@ assert torch.__version__.startswith("1.9")   # please manually install torch 1.9
 # Setup detectron2 logger
 import detectron2
 from detectron2.utils.logger import setup_logger
-setup_logger()
 
 # import some common libraries
 import numpy as np
 import os, json, cv2, random
-from google.colab.patches import cv2_imshow
 
 # import some common detectron2 utilities
 from detectron2 import model_zoo