Remove dead protected imports (#38980)

* remove them

* more

tests/models/mistral3/test_processor_mistral3.py

@@ -20,7 +20,7 @@ import numpy as np
 
 from transformers import PixtralProcessor
 from transformers.testing_utils import require_vision
-from transformers.utils import is_torch_available, is_vision_available
+from transformers.utils import is_torch_available
 
 from ...test_processing_common import ProcessorTesterMixin
 
@@ -29,10 +29,6 @@ if is_torch_available():
     import torch
 
 
-if is_vision_available():
-    pass
-
-
 @require_vision
 class Mistral3ProcessorTest(ProcessorTesterMixin, unittest.TestCase):
     """This tests Pixtral processor with the new `spatial_merge_size` argument in Mistral3."""