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
-}
diff --git a/repository/decrypt_read_closer.go b/repository/decrypt_read_closer.go
deleted file mode 100644
index 81a6f9513..000000000
--- a/repository/decrypt_read_closer.go
+++ /dev/null
@@ -1,36 +0,0 @@
-package repository
-
-import (
-	"io"
-
-	"github.com/restic/restic/crypto"
-)
-
-// decryptReadCloser couples an underlying reader with a DecryptReader and
-// implements io.ReadCloser. On Close(), both readers are closed.
-type decryptReadCloser struct {
-	r  io.ReadCloser
-	dr io.ReadCloser
-}
-
-func newDecryptReadCloser(key *crypto.Key, rd io.ReadCloser) (io.ReadCloser, error) {
-	dr, err := crypto.DecryptFrom(key, rd)
-	if err != nil {
-		return nil, err
-	}
-
-	return &decryptReadCloser{r: rd, dr: dr}, nil
-}
-
-func (dr *decryptReadCloser) Read(buf []byte) (int, error) {
-	return dr.dr.Read(buf)
-}
-
-func (dr *decryptReadCloser) Close() error {
-	err := dr.dr.Close()
-	if err != nil {
-		return err
-	}
-
-	return dr.r.Close()
-}