remove Glyphicons docs autogeneration from Grunt

Simplifies the build tooling a teeny bit.
This data file shouldn't need to be updated for v3 ever again.
This task will also be unnecessary in v4.

[skip sauce] [skip validator]

Gruntfile.js

@@ -18,7 +18,6 @@ module.exports = function (grunt) {
   var fs = require('fs');
   var path = require('path');
   var npmShrinkwrap = require('npm-shrinkwrap');
-  var generateGlyphiconsData = require('./grunt/bs-glyphicons-data-generator.js');
   var BsLessdocParser = require('./grunt/bs-lessdoc-parser.js');
   var generateRawFiles = require('./grunt/bs-raw-files-generator.js');
 
@@ -445,15 +444,13 @@ module.exports = function (grunt) {
   grunt.registerTask('dist', ['clean', 'dist-css', 'copy:fonts', 'dist-js', 'dist-docs']);
 
   // Default task.
-  grunt.registerTask('default', ['test', 'dist', 'build-glyphicons-data', 'build-customizer']);
+  grunt.registerTask('default', ['test', 'dist', 'build-customizer']);
 
   // Version numbering task.
   // grunt change-version-number --oldver=A.B.C --newver=X.Y.Z
   // This can be overzealous, so its changes should always be manually reviewed!
   grunt.registerTask('change-version-number', 'sed');
 
-  grunt.registerTask('build-glyphicons-data', function () { generateGlyphiconsData.call(this, grunt); });
-
   // task for building customizer
   grunt.registerTask('build-customizer', ['build-customizer-html', 'build-raw-files']);
   grunt.registerTask('build-customizer-html', 'jade');

grunt/bs-glyphicons-data-generator.js

-/*!
- * Bootstrap Grunt task for Glyphicons data generation
- * http://getbootstrap.com
- * Copyright 2014 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-'use strict';
-var fs = require('fs');
-
-module.exports = function generateGlyphiconsData(grunt) {
-  // Pass encoding, utf8, so `readFileSync` will return a string instead of a
-  // buffer
-  var glyphiconsFile = fs.readFileSync('less/glyphicons.less', 'utf8');
-  var glyphiconsLines = glyphiconsFile.split('\n');
-
-  // Use any line that starts with ".glyphicon-" and capture the class name
-  var iconClassName = /^\.(glyphicon-[^\s]+)/;
-  var glyphiconsData = '# This file is generated via Grunt task. **Do not edit directly.**\n' +
-                       '# See the \'build-glyphicons-data\' task in Gruntfile.js.\n\n';
-  var glyphiconsYml = 'docs/_data/glyphicons.yml';
-  for (var i = 0, len = glyphiconsLines.length; i < len; i++) {
-    var match = glyphiconsLines[i].match(iconClassName);
-
-    if (match !== null) {
-      glyphiconsData += '- ' + match[1] + '\n';
-    }
-  }
-
-  // Create the `_data` directory if it doesn't already exist
-  if (!fs.existsSync('docs/_data')) {
-    fs.mkdirSync('docs/_data');
-  }
-
-  try {
-    fs.writeFileSync(glyphiconsYml, glyphiconsData);
-  }
-  catch (err) {
-    grunt.fail.warn(err);
-  }
-  grunt.log.writeln('File ' + glyphiconsYml.cyan + ' created.');
-};