{
    "tectonic_aws_az_count": "2",
    "tectonic_aws_etcd_ec2_type": "m4.large",
    "tectonic_aws_public_endpoints": false,
    "tectonic_aws_master_ec2_type": "m4.large",
    "tectonic_aws_vpc_cidr_block": "10.0.0.0/16",
    "tectonic_aws_worker_ec2_type": "m4.large",
    "tectonic_ca_cert": "",
    "tectonic_ca_key": "",
    "tectonic_container_linux_channel": "stable",
    "tectonic_etcd_count": "1",
    "tectonic_etcd_servers": [""],
    "tectonic_master_count": "1",
    "tectonic_stats_url": "https://stats-collector-staging.tectonic.com",
    "tectonic_worker_count": "2"
}

{
    "tectonic_aws_etcd_ec2_type": "m4.large",
    "tectonic_aws_public_endpoints": false,
    "tectonic_aws_master_ec2_type": "m4.large",
    "tectonic_aws_vpc_cidr_block": "10.0.0.0/16",
    "tectonic_aws_worker_ec2_type": "m4.large",
    "tectonic_ca_cert": "",
    "tectonic_ca_key": "",
    "tectonic_container_linux_channel": "stable",
    "tectonic_etcd_count": "1",
    "tectonic_etcd_servers": [""],
    "tectonic_master_count": "1",
    "tectonic_stats_url": "https://stats-collector-staging.tectonic.com",
    "tectonic_worker_count": "2"
}

Remove unused tectonic_aws_az_count var from smoke test input
tests: Remove unused tectonic_aws_az_count var from smoke test input
