docker, runtime: remove bpf-map tool in favor of bpftool
docker, runtime: remove bpf-map tool in favor of bpftool

bpftool already covers everything we need and if there is a case where
it does not, we should just extend it upstream and pull latest one back
into the image via bpf-next as Dockerfile.runtime does.

Signed-off-by: Daniel Borkmann <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@iogearbox.net>

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