We still have multiple mentions of Cloud Provisioning on our website, but this feature was removed for new users from Jan 24, 2017.

Examples:

• https://docs.mongodb.com/ecosystem/platforms/amazon-ec2/

  Start a free trial of Cloud Manager to automatically provision your EC2 instances.

• https://docs.mongodb.com/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/

  Download a free trial of Cloud Manager to automatically provision your EC2 instances.