iio: accel: bma400: Simplify an error message

dev_err_probe() already display the error code. There is no need to
duplicate it explicitly in the error message.

Signed-off-by: Christophe JAILLET <[e-mail]>
Link: https://lore.kernel.org/r/9373d41b0a[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/accel/bma400_core.c

···
 					     ARRAY_SIZE(regulator_names),
 					     regulator_names);
 	if (ret)
-		return dev_err_probe(data->dev, ret, "Failed to get regulators: %d\n",
-				     ret);
+		return dev_err_probe(data->dev, ret, "Failed to get regulators\n");
 
 	/* Try to read chip_id register. It must return 0x90. */
 	ret = regmap_read(data->regmap, BMA400_CHIP_ID_REG, &val);