pkg/bpf: remove outdated godoc for UpdateElementFromPointers
pkg/bpf: remove outdated godoc for UpdateElementFromPointers

Commit 55276eea4f62 ("pkg/bpf: add newer LookupElement, GetNextKey and
UpdateElement functions") added UpdateElementFromPointers but seemd to
have copied the godoc from UpdateElement. However,
UpdateElementFromPointers does not have a flags argument so adjust its
godoc comment.

Signed-off-by: Tobias Klauser <9249c549618448e4c699e8032ba6c7f0d7fd4b7f@distanz.ch>

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