Re: [PATCH v2 20/20] HID: multitouch: Remove the redundant touch state

- After a little bit a playing with some surfaces, I can confuse the
input_mt_assign_slot_by_id function: for the very same contact id, I
got up to four different slots.... This accumulates the clicks and is
not very good.... :-(

Reading again, the input-mt match-by-id code does not do anything near
the same thing as the hid-mt match-by-id code, so this is not at all
surprising. Looks like we need to keep that part in hid-mt, and skip
the corresponding input-mt function. Will fix.

Henrik