Clean PR: Replace _device_t with torch.types.Device and fix lint issues (#152952) #153493
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Fixes #152952
This PR removes redundant type aliases for
_device_t
and replaces them withtorch.types.Device
in several PyTorch modules where applicable. This improves type clarity and consistency across the codebase and aligns with recent efforts to modernize type annotations.cc @jgong5 @mingfeima @XiaobingSuper @sanchitintel @ashokei @jingxu10 @jerryzh168