netlink_delinearize: kill dependency before eval of 'redirect' stmt

netlink_delinearize: kill dependency before eval of 'redirect' stmt

ip protocol 6 redirect to :tcp dport map { 22 : 8000, 80 : 8080}
   is printed as
redirect to :tcp dport map { 22 : 8000, 80 : 8080}

but that input yields:
Error: transport protocol mapping is only valid after transport protocol match

so kill dependencies beforehand so nft won't remove it.

Signed-off-by: Florian Westphal <fw@strlen.de>