remove unnecessary lines

examples/SAGPool/base_dataset.py

@@ -15,7 +15,6 @@
 import sys
 import os
 import random
-from torch_geometric.datasets import TUDataset
 import pgl
 from pgl.utils.logger import log
 from pgl.graph import Graph, MultiGraph

examples/SAGPool/main.py

@@ -194,7 +194,3 @@ if __name__ == "__main__":
     args.num_classes = dataset.num_classes
     args.num_features = dataset.num_features
     random_seed_20(args, dataset)
-
-
-
-

examples/SAGPool/model.py

@@ -25,7 +25,6 @@ from pgl.utils.logger import log
 from layers import sag_pool
 from conv import norm_gcn
 
-
 class GlobalModel(object):
     """Implementation of global pooling architecture with SAGPool.
     """