Removed buffer utils

lib/buffer.js

@@ -1,22 +0,0 @@
-
-/*!
- * Canvas - Buffer
- * Copyright (c) 2010 LearnBoost <tj@learnboost.com>
- * MIT Licensed
- */
-
-/**
- * Concatenate `this` Buffer with `other`.
- *
- * @param {Buffer} other
- * @return {Buffer}
- * @api public
- */
-
-Buffer.prototype.concat = function(other) {
-  var len = this.length
-    , buf = new Buffer(len + other.length);
-  this.copy(buf, 0, 0);
-  other.copy(buf, len, 0);
-  return buf;
-};

lib/canvas.js

@@ -41,12 +41,6 @@ exports.cairoVersion = cairoVersion;
 exports.Context2d = Context2d;
 exports.PNGStream = PNGStream;
 
-/**
- * Buffer extensions.
- */
-
-require('./buffer');
-
 /**
  * Context2d implementation.
  */
@@ -103,26 +97,6 @@ Canvas.prototype.createSyncPNGStream = function(){
   return new PNGStream(this, true);
 };
 
-/**
- * Return a `Buffer` instance consisting of the PNG image data.
- *
- * @return {Buffer}
- * @api public
- */
-
-Canvas.prototype.toBuffer = function(){
-  var buf;
-  this.streamPNGSync(function(err, chunk, len){
-    if (err) throw err;
-    if (len) {
-      buf = buf
-        ? buf.concat(chunk)
-        : chunk;
-    }
-  });
-  return buf;
-};
-
 /**
  * Return a data url.
  *