spi: fsl-spi: remove unused variable assignment

Remove an unused variable assignment.

Signed-off-by: Heiner Kallweit <[e-mail]>
Reviewed-by: Fabio Estevam <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-fsl-spi.c

···
 	list_for_each_entry(t, &m->transfers, transfer_list) {
 		if ((first->bits_per_word != t->bits_per_word) ||
 			(first->speed_hz != t->speed_hz)) {
-			status = -EINVAL;
 			dev_err(&spi->dev,
 				"bits_per_word/speed_hz should be same for the same SPI transfer\n");
 			return -EINVAL;