remove update status code

Author: tinayuangao

tools/gulp/tasks/screenshots.ts

@@ -3,7 +3,6 @@ import {readdirSync, statSync, existsSync, mkdirSync} from 'fs';
 import {openScreenshotsCloudStorage, openFirebaseScreenshotsDatabase} from '../task_helpers';
 import * as path from 'path';
 import * as admin from 'firebase-admin';
-const request = require('request');
 const imageDiff = require('image-diff');
 
 const SCREENSHOT_DIR = './screenshots';
@@ -18,7 +17,6 @@ task('screenshots', () => {
     return getScreenFilenames(database)
       .then((filenames: string[]) => downloadAllGolds(filenames, database, prNumber))
       .then((results: boolean) => updateResult(database, prNumber, results))
-      .then((result: boolean) => updateGithubStatus(result, prNumber))
       .then(() => setScreenFilenames(database, prNumber))
       .then(() => uploadScreenshots(prNumber, 'diff'))
       .then(() => uploadScreenshots(prNumber, 'test'))
@@ -152,39 +150,3 @@ function diffScreenshot(filename: string, database: admin.database.Database,
     return updateFileResult(database, reportKey, filenameKey, false).then(() => false);
   }
 }
-
-function decode(value: string): string {
-  return value.split('').reverse().join('');
-}
-
-function updateGithubStatus(result: boolean, prNumber: string) {
-  let state = result ? 'success' : 'failure';
-  let sha = process.env['TRAVIS_PULL_REQUEST_SHA'];
-  let token = decode(process.env['MATERIAL2_GITHUB_STATUS_TOKEN']);
-
-  let data = JSON.stringify({
-    "state": state,
-    "target_url": `http://material2-screenshots.firebaseapp.com/${prNumber}`,
-    "context": "screenshot-diff",
-    "description": `Screenshot test ${state}`
-  });
-
-  let headers =  {
-    'Authorization': `token ${token}`,
-    'User-Agent': 'ScreenshotDiff/1.0.0',
-    'Content-Type': 'application/json',
-    'Content-Length': Buffer.byteLength(data)
-  };
-
-  return new admin.Promise((resolve, reject) => {
-    request({
-      url: `https://api.github.com/repos/angular/material2/statuses/${sha}`,
-      method: 'POST',
-      form: data,
-      headers: headers
-    }, function (error: any, response: any, body: any){
-      resolve(response.statusCode);
-      console.log(response.statusCode);
-    });
-  });
-}