Merge "removed unnecessary lines on environment configuration in image...

Merge "removed unnecessary lines on environment configuration in image classification demo" into opensource

demo/image_classification/preprocess.sh

@@ -14,8 +14,6 @@
 # limitations under the License.
 set -e
 
-export PYTHONPATH=$PYTHONPATH:../../
-
 data_dir=./data/cifar-out
 
 python preprocess.py -i $data_dir -s 32 -c 1