COSMIT: remove unused import

GaelVaroquaux · GaelVaroquaux · commit f2766ec04440 · 2014-05-23T14:22:29.000+02:00
diff --git a/sklearn/grid_search.py b/sklearn/grid_search.py
@@ -15,7 +15,6 @@
 from functools import partial, reduce
 from itertools import product
 import operator
-import warnings
 
 import numpy as np
 
