Remove PowerHint::DISABLE_TOUCH

This isn't really a power hint and doesn't given the opportunity for the
input system to clean up any on going input streams or input fusion, so
shouldn't be part of the power HAL.

Test: run vts, play with device
Bug: 30143923
Change-Id: I7b63a2f07a7851739d90099af45773acead58548
3 files changed