removed unused import

RJ Agrawal · RJ Agrawal · commit adf574624543 · 2020-07-31T23:50:05.000-07:00
diff --git a/sklearn_pandas/dataframe_mapper.py b/sklearn_pandas/dataframe_mapper.py
@@ -1,4 +1,3 @@
-import sys
 import contextlib
 
 import pandas as pd
