title: AWS Cognito: How to prevent collection of phone number?
body: <p>I have a React app with AWS Amplify integration. When adding auth via Cognito, I do not want to collect phone numbers when signing up people, but I cannot change the settings of the user pool (since it has been created automatically in the <code>amplify add auth</code> process.</p>
  
  <p>How can I prevent phone number collection?</p>