[Java] Drop Suppression in Format module

### Describe the enhancement requested

To enable warnings to be considered as errors, we are enabling this in each module. In this process, we discovered that in the format module, we have to suppress the warnings against `flatbuffers.java` inclusion in the `module-info.java`. Even though we have already created a PR https://github.com/google/flatbuffers/pull/8367 to manage this. But it is still under review. So as soon as this issue is resolved, we must remove this suppression.

### Component(s)

Java