Remove sample callback (second part of DFCT0010080)

[joshsadam]

What does this PR do and why?

Describe in detail what your merge request does and why.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other pull requests.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

PR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• [ ] I have evaluated the PR acceptance checklist for this PR.

[joshsadam]

@ChrisHuynh333 did this better in #629