diff --git a/backend/readcloser.go b/backend/readcloser.go
deleted file mode 100644
index 6467e0dfc..000000000
--- a/backend/readcloser.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package backend
-
-import "io"
-
-// ReadCloser wraps a reader and adds a noop Close method if rd does not implement io.Closer.
-func ReadCloser(rd io.Reader) io.ReadCloser {
-	return readCloser{rd}
-}
-
-// readCloser wraps a reader and adds a noop Close method if rd does not implement io.Closer.
-type readCloser struct {
-	io.Reader
-}
-
-func (rd readCloser) Close() error {
-	if r, ok := rd.Reader.(io.Closer); ok {
-		return r.Close()
-	}
-
-	return nil
-}