Remove the unnecessary SuppressWarning annotation

[jarthana]

What it does

Removes a redundant suppress warnings annotation and fix the error reported.

How to test

Author checklist

• [ ] I have thoroughly tested my changes
• [ ] The change is following the coding conventions
• [ ] I have signed the Eclipse Contributor Agreement (ECA)

[akurtakov]

Rebase in order to rerun tests.

[jarthana]

I haven't checked, but this change has already been done by another commit. This can be closed.