touchscreen: disable dt2w for now

Revert "dt2w: code changes and cleanups"

This reverts commit 1498e140457aa6f1fcafde6d8fb6a9aa16e2776a.

Revert "togari: add in dt2w"

This reverts commit 0266ac80727c04ede702d76837b457a9ea6cc1e9.