Deletes an identity provider for a user pool.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/cognito-idp/delete-identity-provider.html
| aws cognito-idp delete-identity-provider --user-pool-id |
| Adding SAML Identity Providers to a User Pool - Amazon Cognito : http://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-pools-managing-saml-idp-cli-api.html |