Cloud1 disconnected deployment

Changes:

• Remove get-pip.py, which is needed for boto3 install
• Replace boto3 installation with yum install python2-boto3
• Un-set API keys when deploying to cloud1 (Zero trust, IAM roles are required)
• Construct ansible inventory locally and pass to the bastion server. Bastion servers will not have privileged access in cloud1
• General lint/cleanup

@chris.kuperstein @bob.oshel