iio: tmag5273: Remove some unused field in struct tmag5273_data

In "struct tmag5273_data", the 'scale' and 'vcc' fields are unused.
Remove them.

Found with cppcheck, unusedStructMember.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Gerald Loacker <gerald.loacker@wolfvision.net>
Link: https://lore.kernel.org/r/7bd16d7fea12c64b6b3dc3cd32839cfce145bcf3.1714562912.git.christophe.jaillet@wanadoo.frSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/magnetometer/tmag5273.c

@@ -118,11 +118,9 @@ struct tmag5273_data {
 	unsigned int version;
 	char name[16];
 	unsigned int conv_avg;
-	unsigned int scale;
 	enum tmag5273_scale_index scale_index;
 	unsigned int angle_measurement;
 	struct regmap *map;
-	struct regulator *vcc;
 
 	/*
 	 * Locks the sensor for exclusive use during a measurement (which