remove packer.json since CircleCI builds the site

website/packer.json

-{
-  "variables": {
-    "aws_access_key_id": "{{ env `AWS_ACCESS_KEY_ID` }}",
-    "aws_secret_access_key": "{{ env `AWS_SECRET_ACCESS_KEY` }}",
-    "aws_region": "{{ env `AWS_REGION` }}",
-    "website_environment": "production",
-    "fastly_api_key": "{{ env `FASTLY_API_KEY` }}"
-  },
-  "builders": [
-    {
-      "type": "docker",
-      "image": "hashicorp/middleman-hashicorp:0.3.35",
-      "discard": "true",
-      "volumes": {
-        "{{ pwd }}": "/website"
-      }
-    }
-  ],
-  "provisioners": [
-    {
-      "type": "shell",
-      "environment_vars": [
-        "AWS_ACCESS_KEY_ID={{ user `aws_access_key_id` }}",
-        "AWS_SECRET_ACCESS_KEY={{ user `aws_secret_access_key` }}",
-        "AWS_REGION={{ user `aws_region` }}",
-        "ENV={{ user `website_environment` }}",
-        "FASTLY_API_KEY={{ user `fastly_api_key` }}"
-      ],
-      "inline": [
-        "bundle check || bundle install",
-        "bundle exec middleman build",
-        "/bin/bash ./scripts/deploy.sh"
-      ]
-    }
-  ]
-}