staging: iio: accel: remove unneeded braces around single statements

Fixes three checkpatch warnings due to braces used when single
statements are sufficient.
Signed-off-by: Mark Stenglein <mark@stengle.in>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/staging/iio/accel/adis16209.c

@@ -255,9 +255,8 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 		}
 		addr = adis16209_addresses[chan->scan_index][0];
 		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
+		if (ret)
 			return ret;
-		}
 		val16 &= (1 << bits) - 1;
 		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
 		*val = val16;

drivers/staging/iio/accel/adis16240.c

@@ -290,9 +290,8 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
 		bits = 10;
 		addr = adis16240_addresses[chan->scan_index][0];
 		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
+		if (ret)
 			return ret;
-		}
 		val16 &= (1 << bits) - 1;
 		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
 		*val = val16;
@@ -301,9 +300,8 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
 		bits = 10;
 		addr = adis16240_addresses[chan->scan_index][1];
 		ret = adis_read_reg_16(st, addr, &val16);
-		if (ret) {
+		if (ret)
 			return ret;
-		}
 		val16 &= (1 << bits) - 1;
 		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
 		*val = val16;