rollback unrelated additional change

Author: Philip Derbyshire

modules/ImageClassifierService/app/predict.py

@@ -24,7 +24,7 @@
 
 def initialize():
     print('Loading model...',end=''),
-    with tf.gfile.GFile(filename, 'rb') as f:
+    with tf.gfile.FastGFile(filename, 'rb') as f:
         graph_def.ParseFromString(f.read())
         tf.import_graph_def(graph_def, name='')
     print('Success!')