double check config from v1 made it to v2, remove todo

Author: DiannaHohensee

modules/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3Service.java

@@ -234,7 +234,6 @@ S3Client buildClient(final S3ClientSettings clientSettings, SdkHttpClient httpCl
     }
 
     protected S3ClientBuilder buildClientBuilder(S3ClientSettings clientSettings, SdkHttpClient httpClient) {
-        // TODO NOMERGE ensure this has all the same config features as the v1 SDK
         var s3clientBuilder = S3Client.builder();
         s3clientBuilder.httpClient(httpClient);
         s3clientBuilder.overrideConfiguration(buildConfiguration(clientSettings, isStateless));