Do I need this policy if I am using edgemicro in private cloud?

[alanmcln]

I am using an apigee private cloud and this is pointing at the public cloud so does this get used should I be pointing it at my
var url = context.getVariable("virtualhost.aliases")[0]; or is just never used so it dossnt matter?

Authenticate Call {request.header.Authorization} GET /edgemicro/authenticate/organization/{organization.name}/environment/{environment.name} false calloutResponse https://edgemicroservices.apigee.net