MAINT: Patch flake8 error (#318)

gfyoung · jreback · commit 22a0ecb42d45 · 2017-05-09T12:26:01.000-04:00
diff --git a/pandas_datareader/io/tests/test_sdmx.py b/pandas_datareader/io/tests/test_sdmx.py
@@ -1,7 +1,6 @@
 # pylint: disable-msg=E1101,W0613,W0603
 
 import os
-import sys
 
 import numpy as np
 import pandas as pd
