Correct import in classifier utils

Author: Irina Nicolae

src/classifiers/utils.py

@@ -5,7 +5,6 @@
 from keras.models import model_from_json
 from keras.optimizers import SGD
 
-from src.classifiers.bnn import BNN
 from src.classifiers.cnn import CNN
 from src.classifiers.mlp import MLP
 from src.classifiers.resnet import ResNet