Remove unused json rendering from configuration controllers

Zamir Martinsrequested to merge
remove_unused_json_from_configuration into master

What does this MR do and why?

Remove unused json rendering from configuration controllers.

Follow-up from: !108848 (merged)

This code was introduced a while ago but it is not used anymore.

MR acceptance checklist

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

Edited by Zamir Martins

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