Fix LGTM alerts

Signed-off-by: Beat Buesser <[email protected]>

Author: Beat Buesser

conftest.py

@@ -233,7 +233,7 @@ def _get_image_iterator():
             return dataset
 
         if framework == "pytorch":
-            import torch
+            import torch  # lgtm [py/repeated-import]
 
             # Create tensors from data
             x_train_tens = torch.from_numpy(x_train_mnist)
@@ -944,7 +944,7 @@ def __init__(self):
                 preprocessing=(0, 1),
             )
 
-            import torch
+            import torch  # lgtm [py/repeated-import]
 
             self.channels_first = False
             self._input_shape = None