xfm20: remove unused setTtyFd() call causing compiler warnings
xfm20: remove unused setTtyFd() call causing compiler warnings

Signed-off-by: Jon Trulson <08664b19c2d4086eb239dd8ec32d593676a5b9e4@ics.com>
Signed-off-by: Mihai Tudor Panu <a27de6130c5d32f5817bf40bb8b348582f37a8af@intel.com>

nitirohilla/upm,andreivasiliu2211/upm,spitfire88/upm,spitfire88/upm,andreivasiliu2211/upm,malikabhi05/upm,whbruce/upm,skiselev/upm,whbruce/upm,jontrulson/upm,nitirohilla/upm,intel-iot-devkit/upm,malikabhi05/upm,andreivasiliu2211/upm,srware/upm,sasmita/upm,skiselev/upm,ShawnHymel/upm,srware/upm,malikabhi05/upm,rafaneri/upm,whbruce/upm,nitirohilla/upm,afmckinney/upm,malikabhi05/upm,tripzero/upm,srware/upm,arfoll/upm,g-vidal/upm,pylbert/upm,Jon-ICS/upm,jontrulson/upm,Propanu/upm,spitfire88/upm,Propanu/upm,ShawnHymel/upm,g-vidal/upm,arfoll/upm,afmckinney/upm,spitfire88/upm,afmckinney/upm,Propanu/upm,pylbert/upm,tripzero/upm,intel-iot-devkit/upm,rafaneri/upm,rafaneri/upm,stefan-andritoiu/upm,andreivasiliu2211/upm,ShawnHymel/upm,kissbac/upm,kissbac/upm,stefan-andritoiu/upm,pylbert/upm,intel-iot-devkit/upm,pylbert/upm,stefan-andritoiu/upm,g-vidal/upm,skiselev/upm,stefan-andritoiu/upm,arfoll/upm,MakerCollider/upm,tripzero/upm,pylbert/upm,sasmita/upm,nitirohilla/upm,spitfire88/upm,MakerCollider/upm,Jon-ICS/upm,jontrulson/upm,Jon-ICS/upm,pylbert/upm,Jon-ICS/upm,intel-iot-devkit/upm,ShawnHymel/upm,arfoll/upm,jontrulson/upm,malikabhi05/upm,kissbac/upm,g-vidal/upm,sasmita/upm,g-vidal/upm,afmckinney/upm,arfoll/upm,sasmita/upm,afmckinney/upm,skiselev/upm,rafaneri/upm,nitirohilla/upm,sasmita/upm,Propanu/upm,tripzero/upm,Propanu/upm,ShawnHymel/upm,malikabhi05/upm,whbruce/upm,intel-iot-devkit/upm,MakerCollider/upm,skiselev/upm,g-vidal/upm,intel-iot-devkit/upm,tripzero/upm,skiselev/upm,srware/upm,stefan-andritoiu/upm,Jon-ICS/upm,MakerCollider/upm,kissbac/upm,kissbac/upm,andreivasiliu2211/upm,srware/upm,jontrulson/upm,rafaneri/upm,stefan-andritoiu/upm,MakerCollider/upm,Propanu/upm,whbruce/upm