s3: remove setContentLength on handlers

registry/storage/driver/s3-aws/s3.go

@@ -683,28 +683,6 @@ func (d *driver) logS3Operation(ctx context.Context) request.NamedHandler {
 	}
 }
 
-// setContentLengthHandlerHame is used to identify the handler used set the
-// ContentLength field on request data output types that support it.
-const setContentLengthHandlerName = "docker.storage-driver.s3.set-content-length"
-
-// setContentLength is used to set the ContentLength field on request data
-// output types that support it.
-var setContentLength = request.NamedHandler{
-	Name: setContentLengthHandlerName,
-	Fn: func(r *request.Request) {
-		switch v := r.Data.(type) {
-		case *s3.HeadObjectOutput:
-			if r.HTTPResponse.ContentLength > 0 {
-				v.SetContentLength(r.HTTPResponse.ContentLength)
-			}
-		case *s3.GetObjectOutput:
-			if r.HTTPResponse.ContentLength > 0 {
-				v.SetContentLength(r.HTTPResponse.ContentLength)
-			}
-		}
-	},
-}
-
 func (d *driver) s3Client(ctx context.Context) *s3.S3 {
 	s := d.S3
 
@@ -713,7 +691,6 @@ func (d *driver) s3Client(ctx context.Context) *s3.S3 {
 		r := d.logS3Operation(ctx)
 		s.Client.Handlers.Complete.PushBackNamed(r)
 	}
-	s.Client.Handlers.Complete.PushBackNamed(setContentLength)
 
 	return s
 }