Remove logging.basicConfig() to avoid conflict with clients

[athyuttamre]

Calling logging.basicConfig() causes duplicate logging in client code. This is because clients that import devicecheck before setting up their own log handlers will end up with two log handlers.

Here's a simple repro: https://github.com/athyuttamre/devicecheck-repro

This PR removes this line from the package.

[Kylmakalle]

I appreciate the example, even for this one line diff.

You likely want to remove the logger configuration in init.py file as well

I think the reason for this line was my internal testing where I'm not setting up the basic configuration elsewhere.