serverless/lib/plugins/aws/remove/lib/stack.js

export default {
  async remove() {
    const stackName = this.provider.naming.getStackName()
    const params = {
      StackName: stackName,
    }

    const customDeploymentRole = this.provider.getCustomDeploymentRole()
    if (customDeploymentRole) {
      params.RoleARN = customDeploymentRole
    }

    const cfData = {
      StackId: stackName,
    }

    return this.provider
      .request('CloudFormation', 'deleteStack', params)
      .then(() => cfData)
  },

  async removeStack() {
    return this.remove()
  },
}