Avoid doing type switching in inner functions

The CPU profiler tells me that the encoder is spending a lot of time on
type switches.

1 files changed, 0 insertions, 31 deletions

diff --git a/ioutil.go b/ioutil.go
deleted file mode 100644
index a53eac3..0000000
--- a/ioutil.go
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (C) 2022-2023  Luke Shumaker <lukeshu@lukeshu.com>
-//
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package lowmemjson
-
-import (
-	"io"
-	"unicode/utf8"
-)
-
-func writeByte(w io.Writer, c byte) error {
-	if br, ok := w.(interface{ WriteByte(byte) error }); ok {
-		return br.WriteByte(c)
-	}
-	var buf [1]byte
-	buf[0] = c
-	if _, err := w.Write(buf[:]); err != nil {
-		return err
-	}
-	return nil
-}
-
-func writeRune(w io.Writer, c rune) (int, error) {
-	if rw, ok := w.(interface{ WriteRune(rune) (int, error) }); ok {
-		return rw.WriteRune(c)
-	}
-	var buf [utf8.UTFMax]byte
-	n := utf8.EncodeRune(buf[:], c)
-	return w.Write(buf[:n])
-}