Update app.py

app.py

@@ -10,9 +10,6 @@ from flax.serialization import msgpack_restore, from_state_dict
 import os
 import tensorflow as tf
 
-def sigmoid(x):
-  return 1/(1+e**-x)
-
 class CNN(nn.Module):
   @nn.compact
   def __call__(self, x):