[docs] Remove unused file

extractCode.js

@@ -1,39 +0,0 @@
-'use strict';
-
-var argv = require('optimist').argv;
-var fs = require('fs');
-
-var CODE_SAMPLE = /```[\S]+\s*[\s\S]*?```/g;
-var PARTS = /```[\S]+\s*\/\/\s+(.+?)\n([\s\S]*?)```/;
-
-function truncate(s, n) {
-  n = n || 256;
-  if (s.length < n) {
-    return s;
-  }
-  return s.substring(0, n) + '...';
-}
-
-function main(dest, filenames) {
-  if (!dest) {
-    throw new Error('no dest provided');
-  }
-  filenames.map(function(filename) {
-    var content = fs.readFileSync(filename).toString('utf8');
-    var codeSamples = content.match(CODE_SAMPLE);
-
-    codeSamples.map(function(codeSample) {
-      // Do a little jank preprocessing
-      codeSample = codeSample.replace('<!--', '//').replace(' -->', '');
-      var extracted = codeSample.match(PARTS);
-      if (!extracted) {
-        throw new Error('Code sample did not match correct format in ' + filename + ': ' + truncate(codeSample));
-      }
-      var codeSampleFilename = extracted[1];
-      var codeSampleContent = extracted[2].replace(/\*\*/g, '');
-      fs.writeFileSync(argv.dest + '/' + codeSampleFilename, codeSampleContent);
-    });
-  });
-}
-
-main(argv.dest, argv._);