Address comments

Author: ghpvnist

test/stablehlo/test_unbounded_dynamism.py

@@ -7,7 +7,6 @@
 import numpy as np
 import torch
 import torch_xla
-import torch_xla.core.xla_model as xm
 from torch.export import Dim, export
 from torch_xla.stablehlo import exported_program_to_stablehlo
 

torch_xla/experimental/scan_layers.py

@@ -47,7 +47,6 @@ def scan_layers(layers: Iterable[torch.nn.Module],
 
   Example:
 
-    >>> import torch_xla.core.xla_model as xm
     >>> import torch
     >>> import torch.nn as nn
     >>> from torch_xla.experimental.scan_layers import scan_layers