Terraform 0.13 Support - Remove var.enabled

## Background

Now that Terraform 0.13 is released, we can remove the `enabled` variable and its usages within the component, since we can now use `count` on the module resource.

## Desired Change

1. Remove usage of `enabled`
2. Bump terraform version on 0.13

No files or tests are named. Locate the component's Terraform configuration, find the enabled variable and its usages, and identify where the Terraform version is declared. Done means enabled is removed, the Terraform version is 0.13, and the component remains valid.

Written by the indexing model from the issue text.