Remove CDN from APIGateway in AWS provider

[roleyfoley]

Expected Behaviour

The apigateway component doesn't setup CDN deployments as part of its deployment, If I wan't to do that I use the CDN component and the apigateway as an origin

Current Behaviour

The APIGateway configuration has the option available to setup a basic CDN which will work with APIGateway

Possible Solution

Remove the configuration and setup of a CDN as part of the apigateway deployment

Context

This is a hangover from an AWS requirement where you needed to create a CloudFront distribution when you wanted to enable WAF on a regional resource. This is no longer the case and with the introduction of the dedicated CDN component that can handle more complex scenarios it would seem to fit better in our component design process to separate the responsibilities between an API gateway and a cdn.