[TCP] H-TCP: Fix accounting

This fixes the accounting in H-TCP, the ccount variable is also
adjusted a few lines above this one.

This line was not supposed to be there and wasn't there in the patches
originally submitted, the four patches submitted were merged to one
and in that merge the bug was introduced.

Signed-Off-By: Baruch Even <baruch@ev-en.org>
Signed-off-by: David S. Miller <davem@davemloft.net>