remove unused import

Author: r00ta

pandas/tests/io/parser/common.py

@@ -16,7 +16,7 @@
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import DataFrame, Series, Index, MultiIndex, Int64Index
+from pandas import DataFrame, Series, Index, MultiIndex
 from pandas import compat
 from pandas.compat import (StringIO, BytesIO, PY3,
                            range, lrange, u)