remove debug information (#2056)

python/dgl/sampling/neighbor.py

@@ -162,12 +162,10 @@ def sample_neighbors(g, nodes, fanout, edge_dir='in', prob=None, replace=False,
     # only set the edge IDs.
     if not _dist_training:
         if copy_ndata:
-            print(g, type(g))
             node_frames = utils.extract_node_subframes(g, None)
             utils.set_new_frames(ret, node_frames=node_frames)
 
         if copy_edata:
-            print(g, type(g))
             edge_frames = utils.extract_edge_subframes(g, induced_edges)
             utils.set_new_frames(ret, edge_frames=edge_frames)
     else:
@@ -296,12 +294,10 @@ def select_topk(g, k, weight, nodes=None, edge_dir='in', ascending=False,
 
     # handle features
     if copy_ndata:
-        print(g, type(g))
         node_frames = utils.extract_node_subframes(g, None)
         utils.set_new_frames(ret, node_frames=node_frames)
 
     if copy_edata:
-        print(g, type(g))
         edge_frames = utils.extract_edge_subframes(g, induced_edges)
         utils.set_new_frames(ret, edge_frames=edge_frames)
     return ret