Remove comment

Author: lindseydew

common-lib/src/main/scala/com/gu/mediaservice/lib/aws/SimpleSqsMessageConsumer.scala

@@ -15,7 +15,7 @@ class SimpleSqsMessageConsumer (queueUrl: String, config: CommonConfig) {
       ReceiveMessageRequest.builder().queueUrl(queueUrl)
         .waitTimeSeconds(20) // Wait for maximum duration (20s) as per doc recommendation: http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-long-polling.html
         .maxNumberOfMessages(1) // Pull 1 message at a time to avoid starvation
-        .messageSystemAttributeNames(attributeNames: _*) // todo come back to this
+        .messageSystemAttributeNames(attributeNames: _*) 
         .build()
     ).messages().asScala.headOption