[fix] Remove redundant code

[WangShengguang]

Description

Remove redundant code

Type of change

• Bug fix
• New Tutorial
• Updated or additional documentation
• Additional Testing
• New Feature

Checklist:

• I've properly formatted my code according to the guidelines
  • By running yapf
  • By running clang-format
• This PR addresses an already submitted issue for TensorFlow Recommenders-Addons
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

How Has This Been Tested?

If you're adding a bugfix or new feature please describe the tests that you ran to verify your changes:
*

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[rhdong]

LGTM

[rhdong]

Hi @WangShengguang, thank you for your first contribution, you may need to sign the CLA by following the guide of #294 (comment)

[WangShengguang]

Hi @WangShengguang, thank you for your first contribution, you may need to sign the CLA by following the guide of #294 (comment)

done

[rhdong]

Hi @WangShengguang , it's strange for fail on some MacOS scenarios: https://github.com/tensorflow/recommenders-addons/actions/runs/3737315843/jobs/6435077663#step:7:4974 . Maybe we can check it together, I have set up a baseline PR for comparison; let's keep watch on it: #297

---Update: I found it should be a bug of numpy==1.24.x, I will avoid it by a new PR. You can ignore it firstly, after my PR I will merge yours. Thank you!