X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/f3b8d03f7063b162355bccfd71aeb2b8b67bbdbb..3583e494ed815632bbaa2582fd0a49110a21123b:/sdk/go/keepclient/hashcheck.go?ds=sidebyside

diff --git a/sdk/go/keepclient/hashcheck.go b/sdk/go/keepclient/hashcheck.go
index 0966e072ea..f1d5c6ccce 100644
--- a/sdk/go/keepclient/hashcheck.go
+++ b/sdk/go/keepclient/hashcheck.go
@@ -47,12 +47,7 @@ func (hcr HashCheckingReader) Read(p []byte) (n int, err error) {
 // BadChecksum if writing is successful but the checksum doesn't
 // match.
 func (hcr HashCheckingReader) WriteTo(dest io.Writer) (written int64, err error) {
-	if writeto, ok := hcr.Reader.(io.WriterTo); ok {
-		written, err = writeto.WriteTo(io.MultiWriter(dest, hcr.Hash))
-	} else {
-		written, err = io.Copy(io.MultiWriter(dest, hcr.Hash), hcr.Reader)
-	}
-
+	written, err = io.Copy(io.MultiWriter(dest, hcr.Hash), hcr.Reader)
 	if err != nil {
 		return written, err
 	}