Cleanup: Get rid of redundant validations in ROP settings module

MR: Pending

Description

Raised from this comment: !166343 (comment 2121149217)

The ROP settings module contains some validation logic that is a duplicate of what is already present on DB models. Currently, these settings are only configurable via defaults/env overrides(only in the development environment) which we can make sure ourselves are correct. This means the validations do not provide any benefit and just increase maintenance costs. When we plan on working on the settings module, we should look into leveraging the existing db validations that may exist for some of these values rather than duplicating the logic.

Acceptance Criteria

• Cleanup redundant validation from the settings module