deprecate function `get_default_device` in `tools/base.py`
Author: ji-huazhong
Pull request: yes

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As per title.


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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_26774). All of your documentation changes will be reflected on that endpoint.

this PR is ready to be merged :) @muellerzr @ArthurZucker 

cc @amyeroberts