netfilter: nft_set_pipapo: remove unused arguments

[ Upstream commit 7792c1e0 ]

They are not used anymore, so remove them.

Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Stable-dep-of: c4eaca2e ("netfilter: nft_set_pipapo: don't check genbit from packetpath lookups")
Signed-off-by: Sasha Levin <sashal@kernel.org>