Documentation/uorb: remove uncalibrated member

Signed-off-by: dongjiuzhu1 <[email protected]>

Author: Donny9

Documentation/components/drivers/special/sensors/sensors_uorb.rst

@@ -109,10 +109,6 @@ the rest is filled by the upper half.
 
 ``nbuffer`` specifies the length of the ring buffer in the upper half driver; 
 
-``uncalibrated`` indicates whether the data reported by the lower half driver is
-uncalibrated. If true, it means uncalibrated data is reported, and the registered
-device node will have a suffix ``_uncal``.
-
 ``ops`` represents the set of sensor operations implemented by the lower half driver.
 
 ``push_event`` and ``notify_event`` are not used simultaneously and are filled
@@ -139,7 +135,6 @@ used for sensor_rpmsg.
   {
     int type;
     unsigned long nbuffer;
-    bool uncalibrated;
     FAR const struct sensor_ops_s *ops;
   
     union