🩹 Various fixes to `notebook_inference.ipynb`

[ferraridamiano]

Description

In this simple commit I just fixed a couple of issues of the notebook. Moreover I changed the default device from cuda to cpu (since this is a simple example I think that all the people, even who does not own a graphics card have to be able to try it out of the box). Moreover I removed a useless empty code section

Type of change

Please delete options that are not relevant.

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist:

• [x] The code follows the Python style guide.
• [x] Code and files are well organized.
• [ ] All tests pass.
• [ ] New code is covered by tests.
• [x] [Optional] We would be very happy if gitmoji :technologist: could be used to assist the commit message :speech_balloon:!

[henrytsui000]

Hi,

Thanks for reminding me! I also encountered this bug while deploying other models and have fixed it in commit 89c6a27.

Once everything is verified, I will close the PR.

Best regards, Hao Tang Tsui