Remove the default implementation for NFC aidl HAL

The HAL android.hardware.nfc-service.example
is not used anywhere; cuttlefish is using the implementation
in /device/google/cuttlefish/guest/hals/nfc instead
(android.hardware.nfc-service.cuttlefish)

Test: NA
Change-Id: I76dd12624e0e3eb4bb4c7ebf33c33a7781bf9836
9 files changed