The `make gomod` target removes peer_name_mac.go and performs updates to peer_name_hash.go.
It looks like peer_name_mac.go was accidentally checked in, so I'm rerunning `make gomod` on master and these are the resulting changes.
This means we don't have to use build tags when building, so our code
is more go-gettable. Also bazel doesn't support build tags yet, so we
need to do something like this for a bazel build (otherwise gossip DNS
is broken)