feat: remove deprecated utils.walk

public/src/utils.js

@@ -5,12 +5,6 @@
 		var winston = require('winston');
 
 		module.exports = factory(require('xregexp'), winston);
-		module.exports.walk = function (dir, done) {
-			// DEPRECATED
-			var file = require('../../src/file');
-			winston.warn('[deprecated] `utils.walk` is deprecated. Use `file.walk` instead.');
-			file.walk(dir, done);
-		};
 
 		process.profile = function (operation, start) {
 			console.log('%s took %d milliseconds', operation, process.elapsedTimeSince(start));

test/utils.js

@@ -399,14 +399,6 @@ describe('Utility Methods', function () {
 		done();
 	});
 
-	it('should walk directory', function (done) {
-		utils.walk(__dirname, function (err, data) {
-			assert.ifError(err);
-			assert(Array.isArray(data));
-			done();
-		});
-	});
-
 	it('should profile function', function (done) {
 		var st = process.hrtime();
 		setTimeout(function () {