[PATCH] Don't increase master refcount on expectations

[Patrick McHardy]

Pablo Neira wrote:
> As it's been discussed [1][2]. We shouldn't increase the master 
> conntrack refcount for non-fulfilled conntracks. During the conntrack 
> destruction, the expectations are always killed before the conntrack 
> itself, this guarantees that there won't be any orphan expectation.

Applied, thanks. Is it correct that this also fixes the untriggerable
deadlock Yasuyuki noticed?