spi: fsl-espi: remove unneeded call to fsl_espi_setup_transfer

Resetting the chip to a default transfer mode after each transfer
doesn't provide any benefit. Therefore remove this call.
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

drivers/spi/spi-fsl-espi.c

@@ -331,8 +331,6 @@ static int fsl_espi_trans(struct spi_message *m, struct spi_transfer *trans)
 	if (trans->delay_usecs)
 		udelay(trans->delay_usecs);
 
-	fsl_espi_setup_transfer(spi, NULL);
-
 	if (!ret)
 		fsl_espi_copy_from_buf(m, mspi);