Next, you will need to remove the CloudFormation stack for the API. This stack should be named WildRydesBackend. Once again, from the your terminal window, run:
aws cloudformation delete-stack --stack-name WildRydesBackend
If you changed the name of your stack from the default, you will need to update the stack name to what you changed it to. If you clicked the quick link in the instructions, no adjustment to the above command is needed. You can run
aws cloudformation describe-stacksto find the your stack name.