Attempt to make the __call__/serialization work

bob/ip/tensorflow_extractor/FaceNet.py

@@ -153,7 +153,6 @@ class FaceNet(object):
         self.loaded = True
 
     def __call__(self, img):
-        # with _semaphore:
         images = self._check_feature(img)
         if not self.loaded:
             self.load_model()
@@ -194,8 +193,6 @@ class FaceNet(object):
 
     def __getstate__(self):
         # Handling unpicklable objects
-        # with _semaphore:
-        # self._clean_unpicklables()
         self.loaded = False
         d = self.__dict__
         d.pop("session") if "session" in d else None