only cpu test

test/test_saint.py

-import pytest
 import torch
 from torch_sparse.tensor import SparseTensor
 
-from .utils import devices
 
-
-@pytest.mark.parametrize('device', devices)
-def test_saint_subgraph(device):
+def test_saint_subgraph():
     row = torch.tensor([0, 0, 1, 1, 2, 2, 2, 3, 3, 4])
     col = torch.tensor([1, 2, 0, 2, 0, 1, 3, 2, 4, 3])
-    adj = SparseTensor(row=row, col=col).to(device)
+    adj = SparseTensor(row=row, col=col)
     node_idx = torch.tensor([0, 1, 2])
 
     adj, edge_index = adj.saint_subgraph(node_idx)