stop requring promise

Since Node 0.12, Promise has been built-in and available as a global.

For a while, we used a Promise library because `Promise.race` was not
available.  It is available now.

clients/client/src/client.js

@@ -12,7 +12,6 @@ let crypto = require('crypto');
 let slugid = require('slugid');
 let http = require('http');
 let https = require('https');
-let Promise = require('promise');
 let querystring = require('querystring');
 let tcUrl = require('taskcluster-lib-urls');
 

libraries/api/test/noncemanager_test.js

@@ -1,6 +1,5 @@
 const API = require('../src/api');
 const assert = require('assert');
-const Promise = require('promise');
 const debug = require('debug')('base:test:nonceManager');
 const testing = require('taskcluster-lib-testing');
 

libraries/app/src/index.js

@@ -3,7 +3,6 @@ let _ = require('lodash');
 let debug = require('debug')('base:app');
 let assert = require('assert');
 let morganDebug = require('morgan-debug');
-let Promise = require('promise');
 let http = require('http');
 let sslify = require('express-sslify');
 let hsts = require('hsts');

libraries/testing/test/fakeauth_test.js

@@ -7,7 +7,6 @@ const MonitorManager = require('taskcluster-lib-monitor');
 const App = require('taskcluster-lib-app');
 const assert = require('assert');
 const taskcluster = require('taskcluster-client');
-const Promise = require('promise');
 const path = require('path');
 const libUrls = require('taskcluster-lib-urls');
 const testing = require('taskcluster-lib-testing');

libraries/validate/src/publish.js

@@ -1,7 +1,6 @@
 const _ = require('lodash');
 const assert = require('assert');
 const debug = require('debug')('taskcluster-lib-validate');
-const Promise = require('promise');
 const fs = require('fs');
 const path = require('path');
 const mkdirp = require('mkdirp');

package.json

@@ -73,7 +73,6 @@
     "nodemailer": "^6.0.0",
     "passport": "^0.4.0",
     "passport-github": "^1.1.0",
-    "promise": "^8.0.1",
     "promisepipe": "^3.0.0",
     "quick-lru": "^4.0.0",
     "ramda": "^0.26.0",

services/hooks/src/data.js

@@ -1,5 +1,4 @@
 const Entity = require('azure-entities');
-const Promise = require('promise');
 const _ = require('lodash');
 
 /** Entity for tracking hooks and associated state **/

services/hooks/src/scheduler.js

@@ -3,7 +3,6 @@ const events = require('events');
 const Entity = require('azure-entities');
 const data = require('./data');
 const debug = require('debug')('hooks:scheduler');
-const Promise = require('promise');
 const taskcluster = require('taskcluster-client');
 const nextDate = require('./nextdate');
 const taskcreator = require('./taskcreator');