staging: pi433: remove unused rf69_reset_flag function

Function rf69_reset_flag is unused and should be removed.
Signed-off-by: Marcin Ciupak <marcin.s.ciupak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/pi433/rf69.c

@@ -516,18 +516,6 @@ bool rf69_get_flag(struct spi_device *spi, enum flag flag)
 	}
 }
 
-int rf69_reset_flag(struct spi_device *spi, enum flag flag)
-{
-	switch (flag) {
-	case rssiExceededThreshold: return rf69_write_reg(spi, REG_IRQFLAGS1, MASK_IRQFLAGS1_RSSI);
-	case syncAddressMatch:	    return rf69_write_reg(spi, REG_IRQFLAGS1, MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH);
-	case fifo_overrun:	    return rf69_write_reg(spi, REG_IRQFLAGS2, MASK_IRQFLAGS2_FIFO_OVERRUN);
-	default:
-		dev_dbg(&spi->dev, "set: illegal input param");
-		return -EINVAL;
-	}
-}
-
 int rf69_set_rssi_threshold(struct spi_device *spi, u8 threshold)
 {
 	/* no value check needed - u8 exactly matches register size */

drivers/staging/pi433/rf69.h

@@ -43,7 +43,6 @@ int rf69_set_bandwidth_during_afc(struct spi_device *spi, enum mantisse mantisse
 int rf69_set_ook_threshold_dec(struct spi_device *spi, enum thresholdDecrement thresholdDecrement);
 int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value);
 bool rf69_get_flag(struct spi_device *spi, enum flag flag);
-int rf69_reset_flag(struct spi_device *spi, enum flag flag);
 int rf69_set_rssi_threshold(struct spi_device *spi, u8 threshold);
 int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength);
 int rf69_enable_sync(struct spi_device *spi);