iio: imu: adis: remove legacy lock helpers

Since all users were converted to the new cleanup based helper,
adis_dev_lock() and adis_dev_unlock() can now be removed from the lib.
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240618-dev-iio-adis-cleanup-v1-9-bd93ce7845c7@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

include/linux/iio/imu/adis.h

@@ -407,16 +407,6 @@ static inline int adis_check_status(struct adis *adis)
 #define adis_dev_auto_scoped_lock(adis) \
 	scoped_guard(mutex, &(adis)->state_lock)
 
-static inline void adis_dev_lock(struct adis *adis)
-{
-	mutex_lock(&adis->state_lock);
-}
-
-static inline void adis_dev_unlock(struct adis *adis)
-{
-	mutex_unlock(&adis->state_lock);
-}
-
 int adis_single_conversion(struct iio_dev *indio_dev,
 			   const struct iio_chan_spec *chan,
 			   unsigned int error_mask, int *val);