inputdevices: kill syndaemon if DisableIfTyping is true when Touchpad init

tower: https://tower.im/projects/8f19f0bf0e754f0b82ef2c24bc230973/todos/d150ef07d1a444ada48b5f71c9527ae9/
Change-Id: I9454be08ae11ad9ed85bd4908750bf91850403f5