NFC: s3fwrn5: Remove superfluous cflags

NFC_DEBUG is not defined in Kconfig and since DEBUG is not used
anywhere in this directory, we can safely remove this line.
Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com>
Acked-by: NRobert Baldyga <r.baldyga@samsung.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/nfc/s3fwrn5/Makefile

@@ -7,5 +7,3 @@ s3fwrn5_i2c-objs = i2c.o
 
 obj-$(CONFIG_NFC_S3FWRN5) += s3fwrn5.o
 obj-$(CONFIG_NFC_S3FWRN5_I2C) += s3fwrn5_i2c.o
-
-ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG