## Description
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## Motivation and Context
<!-- Why is this change required? What problem does it solve? -->
<!-- If it fixes an open issue, add a link to the issue number: Fixes #1234. -->

## How Has This Been Tested?
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## Type of Changes
<!-- What type of changes does your code introduce? -->
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- Bug fix _(non-breaking change which fixes an issue)_
- New feature _(non-breaking change which adds functionality)_
- Breaking change _(fix or feature that changes existing functionality)_

## Checklist
<!-- Verify the following points before submitting the pull request. -->

- I have signed-off my commits per http://www.dita-ot.org/DCO.
- Builds & tests completed successfully (`./gradlew test integrationTest`).
- My code follows the code style of this project.
    -  <https://github.com/dita-ot/dita-ot/wiki/Java-Coding-Conventions>
    -  <https://github.com/dita-ot/dita-ot/wiki/XSLT-Coding-Conventions>
- I have updated the unit tests to reflect the changes in my code.

## Description
<!-- Describe your changes in detail. -->

## Motivation and Context
<!-- Why is this change required? What problem does it solve? -->
<!-- If it fixes an open issue, add a link to the issue number: Fixes #1234. -->

## How Has This Been Tested?
<!-- Include details of your testing environment, and the tests that you ran -->
<!-- to verify the effect your changes will have on other areas of the code. -->

## Type of Changes
<!-- What type of changes does your code introduce? -->
<!-- (Remove inapplicable items) -->

- Bug fix _(non-breaking change which fixes an issue)_
- New feature _(non-breaking change which adds functionality)_
- Breaking change _(fix or feature that changes existing functionality)_

## Checklist
<!-- Verify the following points before submitting the pull request. -->

- My code follows the code style of this project.
    -  <https://github.com/dita-ot/dita-ot/wiki/Java-Coding-Conventions>
    -  <https://github.com/dita-ot/dita-ot/wiki/XSLT-Coding-Conventions>
- I have updated the unit tests to reflect the changes in my code.

Remove DCO sign-off and test checks
Remove DCO sign-off and test checks

DCO sign-off is verified by a bot and tests are ran by CI, thus manual check is not needed.