crypto: remove default encoding from cipher

Refs: #47182 PR-URL: #47998 Reviewed-By: Filip Skokan <panva.ip@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: tniessen

lib/internal/crypto/cipher.js

@@ -45,7 +45,6 @@ const {
 } = require('internal/crypto/keys');
 
 const {
- getDefaultEncoding,
  getArrayBufferOrView,
  getStringOption,
  kHandle,
@@ -172,10 +171,6 @@ Cipher.prototype._flush = function _flush(callback) {
 };
 
 Cipher.prototype.update = function update(data, inputEncoding, outputEncoding) {
- const encoding = getDefaultEncoding();
- inputEncoding = inputEncoding || encoding;
- outputEncoding = outputEncoding || encoding;
-
  if (typeof data === 'string') {
  validateEncoding(data, inputEncoding);
  } else if (!isArrayBufferView(data)) {
@@ -195,7 +190,6 @@ Cipher.prototype.update = function update(data, inputEncoding, outputEncoding) {
 
 
 Cipher.prototype.final = function final(outputEncoding) {
- outputEncoding = outputEncoding || getDefaultEncoding();
  const ret = this[kHandle].final();
 
  if (outputEncoding && outputEncoding !== 'buffer') {