[GLUTEN][VL] Minor refactor config use in ColumnarCachedBatchSerialize

[zjuwangg]

What changes were proposed in this pull request?

Minor refactor config use in ColumnarCachedBatchSerialize

How was this patch tested?

Existed test.

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on Github Issues?

https://github.com/apache/incubator-gluten/issues

Then could you also rename commit message and pull request title in the following format?

[GLUTEN-${ISSUES_ID}][COMPONENT]feat/fix: ${detailed message}

See also:

• Other pull requests

[wForget]

Thanks, LGTM

[zhztheplayer]

I feel we don't need the logic anymore. Will confirm and raise a PR.