Input: Remove (now) unused variable in i8042.c

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/serio/i8042.c

@@ -802,8 +802,6 @@ static int i8042_controller_init(void)
  */
 static void i8042_controller_reset(void)
 {
-	unsigned char param;
-
 /*
  * Reset the controller if requested.
  */