tlg2300: deprecate and remove

I propose that this driver is deprecated and moved to staging and that 1-2 kernel cycles later this driver is removed.

The reason for this is that hardware for this driver is impossible to find anymore. I had one USB stick but it broke and I have been unable to find another. The company behind the chip is gone for many years and cheap alternatives are easily available.

This driver is still using vb1 and ioctl instead of unlocked_ioctl, and without hardware this will be difficult if not impossible to fix. I am not aware of any active users of this driver.

In my view it is time to retire this driver. The lack of hardware and users and the fact that it uses deprecated APIs makes it a good candidate to removal.

Regards,

Hans