[racer] Remove unused import check_type in torchvision transforms v2 __init__.py

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## Summary:
This diff removes an unused import `check_type` from torchvision/transforms/v2/__init__.py. The import was flagged by Flake8 rule F401 as unused. The function is properly imported directly in the files that actually use it.
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Differential Revision: D77123398

fbshipit-source-id: c4279609ef695298d5f5a1028a0cdf3c988356b8

Author: Mohsin Mohammad

torchvision/transforms/v2/__init__.py

@@ -55,6 +55,6 @@
 )
 from ._temporal import UniformTemporalSubsample
 from ._type_conversion import PILToTensor, ToImage, ToPILImage, ToPureTensor
-from ._utils import check_type, get_bounding_boxes, has_all, has_any, query_chw, query_size
+from ._utils import get_bounding_boxes, has_all, has_any, query_chw, query_size
 
 from ._deprecated import ToTensor  # usort: skip