Revert "input: touchscreen: change filter parameters courtesy of viking37."

This reverts commit aa5174b8e58aa19cdbba50f708e35cfb140b26d5.
Revert "Accuracy Filter Control: export accuracy filter items to userspace via"

This reverts commit a2ea0c1aa1485e37011b9d32b3681b4780f4d611.
Revert "touchscreen: tweak some initialization parameters for better UI response"

This reverts commit e67ff30abe3279ea97683db4c09635868e65a224.