iio: adc: meson-saradc: remove #define MESON_SAR_ADC_DELTA_10_TS_C_SHIFT

This define is of no use because the driver is avoiding shifting bits
by itself but using FIELD_GET/FIELD_PREP (which are using bit masks)
instead. There is already a MESON_SAR_ADC_DELTA_10_TS_C_MASK bit mask so
MESON_SAR_ADC_DELTA_10_TS_C_SHIFT was redundant.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/adc/meson_saradc.c

@@ -148,7 +148,6 @@
 	#define MESON_SAR_ADC_DELTA_10_TS_REVE1			BIT(26)
 	#define MESON_SAR_ADC_DELTA_10_CHAN1_DELTA_VALUE_MASK	GENMASK(25, 16)
 	#define MESON_SAR_ADC_DELTA_10_TS_REVE0			BIT(15)
-	#define MESON_SAR_ADC_DELTA_10_TS_C_SHIFT		11
 	#define MESON_SAR_ADC_DELTA_10_TS_C_MASK		GENMASK(14, 11)
 	#define MESON_SAR_ADC_DELTA_10_TS_VBG_EN		BIT(10)
 	#define MESON_SAR_ADC_DELTA_10_CHAN0_DELTA_VALUE_MASK	GENMASK(9, 0)