Remove an extra newline.

src/icosagon/convolve.py

@@ -20,7 +20,6 @@ class GraphConv(torch.nn.Module):
         self.weight = torch.nn.Parameter(init_glorot(in_channels, out_channels))
         self.adjacency_matrix = adjacency_matrix
 
-
     def forward(self, x: torch.Tensor) -> torch.Tensor:
         x = torch.sparse.mm(x, self.weight) \
             if x.is_sparse \