iptables: Remove old ipsets
iptables: Remove old ipsets

Remove old ipsets before installing new iptables rules, similarly to how
we remove old iptables rules and chains. The ipsets will then only be
created if we're using iptables-based masquerading. This ensures we
don't keep the ipsets when disabling iptables-based masquerading (e.g.,
when switching to BPF-based masquerading).

Signed-off-by: Paul Chaignon <a027184a55211cd23e3f3094f1fdc728df5e0500@cilium.io>

michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium