bpf: remove unused but set variable in handle_netdev
bpf: remove unused but set variable in handle_netdev

This fixes the following error when building with clang 15:

    bpf_host.c:1057:25: error: variable 'tunnel_ep' set but not used [-Werror,-Wunused-but-set-variable]
             __u32 *vrf_id, dst_id, tunnel_ep = 0;
                                    ^

Fixes: f42a49011ca7 ("bpf: Perform SRv6 policy lookup")

Signed-off-by: Tobias Klauser <059b8b880f8441509ec8a65b50b4c6ae74ebea76@cilium.io>

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