V3: test/integration/assets/es6project.js gets deleted (#7146)

* Stops test from removing test/integration/assets/es6project.js

* Updates changelog.

* Adds link to issue in changelog entry.

* Added 'Future' header to changelog entry

* Removed changelog update as requested.

test/integration/sequelize.test.js

@@ -14,7 +14,6 @@ var chai = require('chai')
   , moment = require('moment')
   , Transaction = require(__dirname + '/../../lib/transaction')
   , sinon = require('sinon')
-  , fs = require('fs')
   , current = Support.sequelize;
 
 
@@ -1256,10 +1255,6 @@ describe(Support.getTestDialectTeaser('Sequelize'), function() {
       expect(Project).to.exist;
     });
 
-    after(function(){
-      fs.unlink(__dirname + '/assets/es6project.js');
-    });
-
     it('imports a dao definition from a function', function() {
       var Project = this.sequelize.import('Project', function(sequelize, DataTypes) {
         return sequelize.define('Project' + parseInt(Math.random() * 9999999999999999), {