Function ddsrt_hh_remove_present 

pub unsafe extern "C" fn ddsrt_hh_remove_present(
    rt: *mut ddsrt_hh,
    keyobject: *mut c_void,
)

@brief Like @ref ddsrt_hh_remove, but without returning success/failure result.

Only use if you’re certain that the element exists.

@param[in,out] rt the hash table @param[in] keyobject user data to remove @see ddsrt_hh_add_absent