lib: cbprintf: remove cbprintf_arglen

This function was designed to support the logging infrastructure's
need to copy values from va_list structures.  It did not meet that
need, since some values need to be changed based on additional data
that is only available when the complete format specification is
examined.  Remove the function as unnecessary.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
4 files changed