Remove kotlin-android-extensions.

[runningcode]

They are deprecated and generate deprecation warnings.

[google-cla[bot]]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

:memo: Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here with @googlebot I signed it! and we'll verify it.

---

What to do if you already signed the CLA

Individual signers

• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

Corporate signers

• Your company has a Point of Contact who decides which employees are authorized to participate. Ask your POC to be added to the group of authorized contributors. If you don't know who your Point of Contact is, direct the Google project maintainer to go/cla#troubleshoot (Public version).
• The email used to register you as an authorized contributor must be the email used for the Git commit. Check your existing CLA data and verify that your email is set on your git commits.
• The email used to register you as an authorized contributor must also be attached to your GitHub account.

ℹ️ Googlers: Go here for more info.

[borisf]

Nelson, please accept the CLA. In addition, please take a look at the travis build fail

[runningcode]

@borisf thanks for the reminder. I'm working on it! Cheers.

[runningcode]

@googlebot I signed it!

[google-cla[bot]]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

:memo: Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here with @googlebot I signed it! and we'll verify it.

---

What to do if you already signed the CLA

Individual signers

• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

Corporate signers

• Your company has a Point of Contact who decides which employees are authorized to participate. Ask your POC to be added to the group of authorized contributors. If you don't know who your Point of Contact is, direct the Google project maintainer to go/cla#troubleshoot (Public version).
• The email used to register you as an authorized contributor must be the email used for the Git commit. Check your existing CLA data and verify that your email is set on your git commits.
• The email used to register you as an authorized contributor must also be attached to your GitHub account.

ℹ️ Googlers: Go here for more info.

[runningcode]

@borisf The CI failure looks like an issue where the build is using a version of Gradle that does not support java 11 but Travis is creating the build with Java 11.

There are two options:

• Upgrade Gradle to a newer version (might require some other changes)
• Change the travis CI to use Java 8

Let me know how to proceed. I will make a separate PR with the changes.

It should be noted that the travis CI job has a shutdown warning at the top of the page which reads:

Please be aware travis-ci.org will be shutting down in several weeks, with all accounts migrating to travis-ci.com. Please stay tuned here for more information.

[runningcode]

@borisf we signed the corporate CLA, but the link to verify is http://linkremoved over here: https://opensource.google/docs/cla/#cla-accepted

Is there another way to check if it has been signed?

[borisf]

Thanks Nelson, let me follow up with the CLA first

[runningcode]

@googlebot I signed it!

[borisf]

Hi Nelson, please fix the Travis-CI, and I will merge the PR

[runningcode]

@borisf travis is fixed!