buffer: remove raw & raws encoding

As `raw` and `raws` encodings are deprecated for such a long time, and
they both are undocumented, this patch removes the support for those
encodings completely.

Previous discussion: https://github.com/nodejs/node/pull/2829

PR-URL: https://github.com/nodejs/node/pull/2859
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

lib/buffer.js

@@ -194,7 +194,6 @@ Buffer.isEncoding = function(encoding) {
       case 'ucs-2':
       case 'utf16le':
       case 'utf-16le':
-      case 'raw':
         return true;
 
       default:
@@ -260,9 +259,6 @@ function byteLength(string, encoding) {
     switch (encoding) {
       case 'ascii':
       case 'binary':
-      // Deprecated
-      case 'raw':
-      case 'raws':
         return len;
 
       case 'utf8':

src/node.cc

@@ -1217,18 +1217,6 @@ enum encoding ParseEncoding(const char* encoding,
     return BUFFER;
   } else if (strcasecmp(encoding, "hex") == 0) {
     return HEX;
-  } else if (strcasecmp(encoding, "raw") == 0) {
-    if (!no_deprecation) {
-      fprintf(stderr, "'raw' (array of integers) has been removed. "
-                      "Use 'binary'.\n");
-    }
-    return BINARY;
-  } else if (strcasecmp(encoding, "raws") == 0) {
-    if (!no_deprecation) {
-      fprintf(stderr, "'raws' encoding has been renamed to 'binary'. "
-                      "Please update your code.\n");
-    }
-    return BINARY;
   } else {
     return default_encoding;
   }

test/parallel/test-buffer-bytelength.js

@@ -5,9 +5,9 @@ var assert = require('assert');
 var Buffer = require('buffer').Buffer;
 
 // coerce values to string
-assert.equal(Buffer.byteLength(32, 'raw'), 2);
+assert.equal(Buffer.byteLength(32, 'binary'), 2);
 assert.equal(Buffer.byteLength(NaN, 'utf8'), 3);
-assert.equal(Buffer.byteLength({}, 'raws'), 15);
+assert.equal(Buffer.byteLength({}, 'binary'), 15);
 assert.equal(Buffer.byteLength(), 9);
 
 // special case: zero length string

test/parallel/test-file-read-noexist.js

@@ -6,7 +6,7 @@ var fs = require('fs');
 var got_error = false;
 
 var filename = path.join(common.fixturesDir, 'does_not_exist.txt');
-fs.readFile(filename, 'raw', function(err, content) {
+fs.readFile(filename, 'binary', function(err, content) {
   if (err) {
     got_error = true;
   } else {