Fast AF use normal stream

openflexure_microscope/camera/mock.py

@@ -2,7 +2,6 @@
 
 from __future__ import division
 
-import io
 import logging
 import time
 from datetime import datetime
@@ -32,9 +31,6 @@ class MissingCamera(BaseCamera):
         self.jpeg_quality = 75
         self.framerate = 10
 
-        # Create an empty stream
-        self.stream = io.BytesIO()
-
         # Generate an initial dummy image
         self.generate_new_dummy_image()