cleanup: delete unused variables in functions/helloworld (#1556)

Author: fhinkel

functions/helloworld/package.json

@@ -28,7 +28,6 @@
     "@google-cloud/pubsub": "^1.0.0",
     "@google-cloud/storage": "^4.0.0",
     "child-process-promise": "^2.2.1",
-    "delay": "^4.3.0",
     "express": "^4.16.3",
     "mocha": "^6.1.4",
     "moment": "^2.24.0",

functions/helloworld/test/index.test.js

@@ -21,19 +21,8 @@ const sinon = require('sinon');
 const execPromise = require('child-process-promise').exec;
 
 const program = require('..');
-
-const {PubSub} = require('@google-cloud/pubsub');
-const pubsub = new PubSub();
-const {Storage} = require('@google-cloud/storage');
-const storage = new Storage();
-
-const topicName = process.env.FUNCTIONS_TOPIC;
-
-const localFileName = 'test.txt';
 const fileName = `test-${uuid.v4()}.txt`;
-
 const bucketName = process.env.FUNCTIONS_BUCKET;
-const bucket = storage.bucket(bucketName);
 
 const startFF = (target, signature, port) => {
   const cwd = path.join(__dirname, '..');

functions/helloworld/test/sample.system.pubsub.test.js

@@ -14,7 +14,6 @@
 
 // [START functions_pubsub_system_test]
 const childProcess = require('child_process');
-const delay = require('delay');
 const assert = require('assert');
 const uuid = require('uuid');
 const {PubSub} = require('@google-cloud/pubsub');

functions/helloworld/test/sample.system.storage.test.js

@@ -19,7 +19,6 @@ const uuid = require('uuid');
 const assert = require('assert');
 const path = require('path');
 const childProcess = require('child_process');
-const delay = require('delay');
 const moment = require('moment');
 const promiseRetry = require('promise-retry');