tata80: remove unneeded files (qmk#760)

These were picked up early and not removed with a later merge. Clean
them up manually here to resolve the following build warning:

wuque/tata80/wk: LAYOUT: Layout macro should not be defined within ".h"
files.

These files should have been removed in the following commits:
02ccc50 (Remove more empty headers (qmk#20155), 2023-03-17)
5bd68e3 (Move single `LAYOUT`s to data driven (qmk#20365), 2023-04-12)

Signed-off-by: Randolph Sapp <rs@ti.com>