Revert "Add flag for customizing touchpad 3 finger tap."

Revert submission 30235512-3ft-flag

Reason for revert: Flag no longer needed

Reverted change: Ic6704364a1d59918a40a899d4c14b87a546ca2f8

Change-Id: I679e5727e32d48a4d4c07ffac018d081d1724f70
1 file changed