Input: ucb1400_ts - remove redundant variable penup

Variable penup is assigned a value but penup is never read later, it
is redundant and can be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20211205000525.153999-1-colin.i.king@gmail.com


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>