Upgrade AWS SDK to the latest version

vendor/github.com/aws/aws-sdk-go/service/shield/service.go

@@ -1,4 +1,4 @@
-// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.
+// Code generated by private/model/cli/gen-api/main.go. DO NOT EDIT.
 
 package shield
 
@@ -11,14 +11,12 @@ import (
 	"github.com/aws/aws-sdk-go/private/protocol/jsonrpc"
 )
 
-// This is the AWS Shield Advanced API Reference. This guide is for developers
-// who need detailed information about the AWS Shield Advanced API actions,
-// data types, and errors. For detailed information about AWS WAF and AWS Shield
-// Advanced features and an overview of how to use the AWS WAF and AWS Shield
-// Advanced APIs, see the AWS WAF and AWS Shield Developer Guide (http://docs.aws.amazon.com/waf/latest/developerguide/).
-// The service client's operations are safe to be used concurrently.
-// It is not safe to mutate any of the client's properties though.
-// Please also see https://docs.aws.amazon.com/goto/WebAPI/shield-2016-06-02
+// Shield provides the API operation methods for making requests to
+// AWS Shield. See this package's package overview docs
+// for details on the service.
+//
+// Shield methods are safe to use concurrently. It is not safe to
+// modify mutate any of the struct's properties though.
 type Shield struct {
 	*client.Client
 }