remove reference to obsolete

EmergentOrder · EmergentOrder · commit 73adea9d6f50 · 2015-11-03T14:11:32.000-04:00
diff --git a/predictionio/__init__.py b/predictionio/__init__.py
@@ -6,9 +6,6 @@
 
 __version__ = "0.9.6"
 
-# import deprecated libraries.
-from predictionio.obsolete import Client, InvalidArgumentError
-
 # import packages
 import re
 try:
