Do not log LIBUSB_ERROR_NO_DEVICE when a multi slot is removed
Do not log LIBUSB_ERROR_NO_DEVICE when a multi slot is removed

When a multi slot reader with simultaneous acces used is removed we get
the error log:
00000000 [140737321879104] ccid_usb.c:1734:Multi_PollingProc() Multi_PollingProc (1/18): error -4 LIBUSB_ERROR_NO_DEVICE

Since this error is expected we do not log it.

LudovicRousseau/CCID,LudovicRousseau/CCID,LudovicRousseau/CCID