docs(s3-deployment): cleanup (#13143)

Cleanup based on #13136 (comment).

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-s3-deployment/README.md

@@ -156,39 +156,15 @@ import * as origins from '@aws-cdk/aws-cloudfront-origins';
 
 const bucket = new s3.Bucket(this, 'Destination');
 
-// Option 1 (Stable): Handles buckets whether or not they are configured for website hosting.
+// Handles buckets whether or not they are configured for website hosting.
 const distribution = new cloudfront.Distribution(this, 'Distribution', {
   defaultBehavior: { origin: new origins.S3Origin(bucket) },
 });
 
-// Option 2 (Stable): Use this if the bucket has website hosting enabled.
-const distribution_for_website_bucket = new cloudfront.CloudFrontWebDistribution(this, 'DistributionForWebBucket', {
-  originConfigs: [
-    {
-      customOriginSource: {
-        domainName: bucket.bucketWebsiteDomainName,
-      },
-      behaviors : [ {isDefaultBehavior: true}]
-    }
-  ]
-});
-
-// Option 3 (Stable): Use this version if the bucket does not have website hosting enabled.
-const distribution_for_bucket = new cloudfront.CloudFrontWebDistribution(this, 'DistributionForBucket', {
-  originConfigs: [
-    {
-      s3OriginSource: {
-        s3BucketSource: bucket
-      },
-      behaviors : [ {isDefaultBehavior: true}]
-    }
-  ]
-});
-
 new s3deploy.BucketDeployment(this, 'DeployWithInvalidation', {
   sources: [s3deploy.Source.asset('./website-dist')],
   destinationBucket: bucket,
-  distribution, // or distribution_for_website_bucket or distribution_for_bucket
+  distribution,
   distributionPaths: ['/images/*.png'],
 });
 ```