docs: Do not seek kerneldoc comments in hw-consumer.h

There are no kerneldoc comments here, so looking for them just yields a
warning in the docs build.

Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/driver-api/iio/hw-consumer.rst

···
 
 More details
 ============
-.. kernel-doc:: include/linux/iio/hw-consumer.h
 .. kernel-doc:: drivers/iio/buffer/industrialio-hw-consumer.c
    :export: