Remove old test class TestJaxBase

[DanPuzzuoli]

Summary

Details and comments

[to24toro]

Thanks Dan.
This PR looks good for me.
In addition, Can we remove ArrayTest class e.g. ArrayNumpyTestBase?

[DanPuzzuoli]

Thanks Dan. This PR looks good for me. In addition, Can we remove ArrayTest class e.g. ArrayNumpyTestBase?

That's a good question. We're currently using it for Signal testing, and I was thinking we could keep it there since we will be deprecating Array and not getting rid of it right away. On the other hand, the usage of Array throughout the package generally is already broken, so it may not be worth maintaining tests for the signal class. What do you think?

[to24toro]

Thanks. I consider that it is better to drop Array test cases at the same time that we will deprecate Array class.