NFC: digital: Remove extra blank line

Remove extra blank line that was inadvertently
added by a recent commit.

CC: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/net/nfc/digital.h

@@ -67,7 +67,6 @@ enum {
 	NFC_DIGITAL_FRAMING_NFCB,
 	NFC_DIGITAL_FRAMING_NFCB_T4T,
 
-
 	NFC_DIGITAL_FRAMING_LAST,
 };