Remove unnecessary ModelKindDropdown input

[charisk]

I noticed that the method input was not used in the ModelKindDropdown so I got rid of it.

Checklist

N/A:

• CHANGELOG.md has been updated to incorporate all user visible changes made by this pull request.
• Issues have been created for any UI or other user-facing changes made by this pull request.
• [Maintainers only] If this pull request makes user-facing changes that require documentation changes, open a corresponding docs pull request in the github/codeql repo and add the ready-for-doc-review label there.

[robertbrignull]

LGTM if it compiles still.

I think I noticed this too, or maybe another similar unused prop. Are our linting rules not catching unused React component props?

[charisk]

I think I noticed this too, or maybe another similar unused prop. Are our linting rules not catching unused React component props?

Yep. I've raised an internal issue to tidy that up (linked to the PR).