spi: meson-spicc: remove unused variables

Remove unused variables from spicc data struct.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200312133131.26430-2-narmstrong@baylibre.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-meson-spicc.c

@@ -130,9 +130,7 @@ struct meson_spicc_device {
 	u8				*rx_buf;
 	unsigned int			bytes_per_word;
 	unsigned long			tx_remain;
-	unsigned long			txb_remain;
 	unsigned long			rx_remain;
-	unsigned long			rxb_remain;
 	unsigned long			xfer_remain;
 	bool				is_burst_end;
 	bool				is_last_burst;