Cleaner documentation for Travis CI static tests

[Thundar]

Description

This fix applies only to version 2.3.
Travis CI is failing static test for the commited files. The reason is that the comments does not adhere perfectly to the standard, especially on {@inheritdoc} usage.
Reference: inheritdoc documentation

Manual testing scenarios

1. Run static tests on Travis without this commit to see the previous errors. Example: Pull request [Forwardport] 17968 Fix Customer custom attributes lost after save #18373 Travis CI Build Exception on customer edit under restricted admin access #13951 Job Exception on customer edit under restricted admin access #13951.3
2. See Travis CI results on this pull request

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @josefbehr, thank you for the review.
ENGCOM-3118 has been created to process this Pull Request

[magento-cicd2]

Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ Thundar
❌ josefbehr

[magento-engcom-team]

Hi @sivaschenko, thank you for the review.
ENGCOM-4629 has been created to process this Pull Request

[m2-assistant]

Hi @Thundar, thank you for your contribution!
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