KCC: remove essentially dead code

KCC: remove essentially dead code

As the removed comment noted, the logic goes:

    if partial:           # ~60 lines up
       if not partial:
           ...

and we have kept it there for this long because the spec implies it.

(As a matter of fact I can't see how this entire `if partial` loop does
anything of consequence, given the previous loop didn't exclude the
partial case).

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>