ApfFilter: remove dead code in mHasClat case

if we drop all ARP, then the rest of this code is no longer reachable.

Also take this opportunity to update the comment to be correct.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Iae727107c74901d339de71080ba6108d443bdd98
1 file changed