Update Remediation SLA

Why is this change being made?

Having two different columns related to remediation timelines is confusing. Based on my understanding this was historically created as Internal Audit had different remediation SLA's from Security Assurance and is no longer necessary as IA does not place as much reliance as they did previously. In addition the previous Remediation SLA appeared to lenient whereas the previous Remediation Goal was too strict and combined the two as middle ground.

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