While Disabling Policy Engine, Orca Continually Advises that it Cannot Communicate with OPA Server

Issue

When disabling and removing Policy Engine, the following error continues to occur in Orca logs. There are however, no issues with deployments or executions of pipelines 2020-11-05 07:36:17.726 ERROR 1 --- [ handlers-15] io.armory.spinnaker.opa.PolicyEnforcer : [[e-mail]] Policy Error: Unable to communicate with OPA Server [...]

Cause

Not all configurations were removed, and so references still exist to check for the OPA server.