Revert "pkg/datapath: ignore iptables MASQUERADE rules in flannel mode"
Revert "pkg/datapath: ignore iptables MASQUERADE rules in flannel mode"

This reverts commit 7740e3914ebf2bb36860369aeda585a94b2c17c1.

cilium/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,tgraf/cilium,tgraf/cilium,tklauser/cilium,tgraf/cilium,cilium-team/cilium,tklauser/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium-team/cilium,cilium/cilium,tgraf/cilium,tklauser/cilium,tklauser/cilium,tgraf/cilium,cilium/cilium,tklauser/cilium