test: remove babel tests as they are no longer needed in node v7.6

Makefile

@@ -5,8 +5,7 @@ REQUIRED = --require should --require should-http
 TESTS = test/application/* \
 	test/context/* \
 	test/request/* \
-	test/response/* \
-	test/babel/index.js
+	test/response/*
 
 lint:
 	@./node_modules/.bin/eslint benchmarks lib test

package.json

@@ -47,9 +47,6 @@
     "tag": "next"
   },
   "devDependencies": {
-    "babel-eslint": "^6.0.0",
-    "babel-plugin-transform-async-to-generator": "^6.0.14",
-    "babel-register": "^6.9.0",
     "eslint": "^2.5.3",
     "eslint-config-standard": "^5.1.0",
     "eslint-plugin-babel": "^3.1.0",

test/babel/_test.js

@@ -1,42 +0,0 @@
-'use strict';
-
-const request = require('supertest');
-const Koa = require('../..');
-
-describe('require("babel-core/register")', () => {
-  describe('app.use(fn)', () => {
-    it('should compose middleware w/ async functions', done => {
-      const app = new Koa();
-      const calls = [];
-
-      app.use(async (ctx, next) => {
-        calls.push(1);
-        await next();
-        calls.push(6);
-      });
-
-      app.use(async (ctx, next) => {
-        calls.push(2);
-        await next();
-        calls.push(5);
-      });
-
-      app.use(async (ctx, next) => {
-        calls.push(3);
-        await next();
-        calls.push(4);
-      });
-
-      const server = app.listen();
-
-      request(server)
-        .get('/')
-        .expect(404)
-        .end(err => {
-          if (err) return done(err);
-          calls.should.eql([1, 2, 3, 4, 5, 6]);
-          done();
-        });
-    });
-  });
-});

test/babel/index.js

@@ -1,8 +0,0 @@
-'use strict';
-
-// http://babeljs.io/docs/setup/#babel_register
-
-require('babel-register')({
-  plugins: ['transform-async-to-generator']
-});
-require('./_test.js');