Update app.py

app.py

@@ -36,8 +36,6 @@ ig  = IntegratedGradients(model,
                           method=method,
                           internal_batch_size=internal_batch_size)
 
-# refs: 
-# - fig2pil: https://stackoverflow.com/questions/57316491/how-to-convert-matplotlib-figure-to-pil-image-object-without-saving-image
 def do_process(img, baseline):
   instance = image.img_to_array(img)
   instance = np.expand_dims(instance, axis=0)