[ZEPPELIN-4448] delete unused variable in ZeppelinServer.java

[iamabug]

What is this PR for?

delete an unused variable in ZeppelinServer.java

What type of PR is it?

Improvement

Todos

What is the Jira issue?

[ZEPPELIN-4448] https://issues.apache.org/jira/browse/ZEPPELIN-4448

How should this be tested?

Travis CI

Screenshots (if appropriate)

Questions:

• Does the licenses files need update?
  no
• Is there breaking changes for older versions?
  no
• Does this needs documentation?
  no

[zjffdu]

@iamabug Could you update the PR description ?

[iamabug]

@iamabug Could you update the PR description ?

Is it ok now ?

[zjffdu]

Please add prefix [ZEPPELIN-XXXX] to the PR title

[iamabug]

Please add prefix [ZEPPELIN-XXXX] to the PR title

Done.

[zjffdu]

Thanks @iamabug one last thing, could you paste your travis build link here ?

[iamabug]

https://travis-ci.org/iamabug/zeppelin

Is this the right link ?

[zjffdu]

That's right, thanks for the contribution @iamabug
The failed test is due hadoop-lzo issue which is being fixed in another PR. I will let you know when that PR is merged, then you can rebase your PR and trigger the CI again.

[iamabug]

Sure. Thanks for your guidance.

[zjffdu]

@iamabug The hadoop lzo issue is fixed, could you do a rebase and trigger the travis CI again ?

[iamabug]

@zjffdu Travis CI has run again but two of them failed, is there something wrong ?

[zjffdu]

These issues are being fixed somewhere else, will merge this PR if no more comments