spi: fsl-espi: remove unneeded check in fsl_espi_do_trans

SPI core takes care that both values are always populated.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-fsl-espi.c

@@ -279,7 +279,6 @@ static void fsl_espi_do_trans(struct spi_message *m,
 	trans.tx_buf = espi_trans->tx_buf;
 	trans.rx_buf = espi_trans->rx_buf;
 
-	if (trans.bits_per_word || trans.speed_hz)
 	fsl_espi_setup_transfer(spi, &trans);
 
 	if (trans.len)