Enable drag and drop testcase in `action_spec.js`

[wswebcreation]

The CircleCI was broken (#4385) due to drag and drop issue. @cnishina disabled the testcase with xit because it was related to 768fd39

Selenium 3.5 is already released but it didn't solve the problem.

npm test

> protractor@5.1.2 pretest /Users/wswebcreation/contributions/protractor
> gulp pretest

[22:07:18] Using gulpfile ~/contributions/protractor/gulpfile.js
[22:07:18] Starting 'pretest'...
[22:07:18] Starting 'checkVersion'...
[22:07:18] Finished 'checkVersion' after 3.48 ms
[22:07:18] Starting 'webdriver:update'...
[22:07:18] Starting 'jshint'...
[22:07:18] Starting 'tslint'...
[22:07:18] Starting 'format'...
[22:07:18] I/update - chromedriver: file exists /Users/wswebcreation/contributions/protractor/node_modules/webdriver-manager/selenium/chromedriver_2.31.zip
[22:07:18] I/update - chromedriver: unzipping chromedriver_2.31.zip
[22:07:19] Finished 'tslint' after 1.06 s
[22:07:19] I/update - chromedriver: setting permissions to 0755 for /Users/wswebcreation/contributions/protractor/node_modules/webdriver-manager/selenium/chromedriver_2.31
[22:07:19] I/update - chromedriver: chromedriver_2.31 up to date
[22:07:19] I/update - selenium standalone: file exists /Users/wswebcreation/contributions/protractor/node_modules/webdriver-manager/selenium/selenium-server-standalone-3.5.0.jar
[22:07:19] I/update - selenium standalone: selenium-server-standalone-3.5.0.jar up to date
[22:07:19] Finished 'format' after 1.3 s
[22:07:19] Finished 'jshint' after 1.32 s
[22:07:20] I/update - geckodriver: file exists /Users/wswebcreation/contributions/protractor/node_modules/webdriver-manager/selenium/geckodriver-v0.18.0.tar.gz
[22:07:20] I/update - geckodriver: unzipping geckodriver-v0.18.0.tar.gz
[22:07:20] I/update - geckodriver: setting permissions to 0755 for /Users/wswebcreation/contributions/protractor/node_modules/webdriver-manager/selenium/geckodriver-v0.18.0
[22:07:20] I/update - geckodriver: geckodriver-v0.18.0 up to date
[22:07:20] Finished 'webdriver:update' after 2.34 s
[22:07:20] Starting 'tsc'...
[22:07:23] Finished 'tsc' after 2.81 s
[22:07:23] Starting 'built:copy'...
[22:07:23] Finished 'built:copy' after 20 ms
[22:07:23] Starting 'tsc:spec'...
[22:07:25] Finished 'tsc:spec' after 1.95 s
[22:07:25] Finished 'pretest' after 7.13 s

> protractor@5.1.2 test /Users/wswebcreation/contributions/protractor
> node scripts/test.js

running: node built/cli.js spec/basicConf.js
.................[22:07:26] I/launcher - Running 1 instances of WebDriver
[22:07:26] I/hosted - Using the selenium server at http://localhost:4444/wd/hub
Started
F

Failures:
1) using an ActionSequence should drag and drop
  Message:
    Expected '5' to equal '10'.
  Stack:
    Error: Failed expectation
        at UserContext.<anonymous> (/Users/wswebcreation/contributions/protractor/spec/basic/actions_spec.js:15:45)
        at /Users/wswebcreation/contributions/protractor/node_modules/jasminewd2/index.js:112:25
        at new ManagedPromise (/Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:1067:7)
        at ControlFlow.promise (/Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:2396:12)
        at schedulerExecute (/Users/wswebcreation/contributions/protractor/node_modules/jasminewd2/index.js:95:18)
        at TaskQueue.execute_ (/Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:2970:14)
        at TaskQueue.executeNext_ (/Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:2953:27)
        at asyncRun (/Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:2860:25)
        at /Users/wswebcreation/contributions/protractor/node_modules/selenium-webdriver/lib/promise.js:676:7

Ran 1 of 149 specs
1 spec, 1 failure
Finished in 0.727 seconds