spi: fsl-espi: Remove unused bits_per_word variable in fsl_espi_bufs

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/spi-fsl-espi.c

@@ -219,13 +219,8 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
 	struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
 	struct fsl_espi_reg *reg_base = mpc8xxx_spi->reg_base;
 	unsigned int len = t->len;
-	u8 bits_per_word;
 	int ret;
 
-	bits_per_word = spi->bits_per_word;
-	if (t->bits_per_word)
-		bits_per_word = t->bits_per_word;
-
 	mpc8xxx_spi->len = t->len;
 	len = roundup(len, 4) / 4;