Update app.py

app.py

@@ -52,7 +52,6 @@ weights_hidden_output = np.array([[23.73266741, 23.84381938]]).T
 bias_output = np.array([[-35.80629779]]).reshape(-1)
 
 def visualize_neural(a):
-  buffer = io.BytesIO()
   input_values = [int(i) for i in list(a)]
   hidden_layer_input = np.dot(input_values, weights_input_hidden) + biases_hidden
   hidden_layer_output = np.array([round(i,3) for i in sigmoid(hidden_layer_input)])