Revert "master: bind heartbeat claims to the connecting peer (#9443)"
This reverts commit f28c7ce6df.
The strict heartbeat-ip-vs-peer match in authorizeHeartbeatPeer rejects
every hostname-based deployment. In docker-compose / k8s the volume
server is started with -ip=<service-name> and the gRPC peer surfaces
as the container/pod IP, so the two never match and every heartbeat
fails with `heartbeat ip "volume" does not match peer "172.18.0.3"`.
The master therefore never learns about any volume, growth fails, and
fio writes against the mount return EIO.
After the #9440 revert merged (43a8c4fdc), the e2e workflow is still
failing for this reason; see
https://github.com/seaweedfs/seaweedfs/actions/runs/25767265775 .
Reverting to unblock e2e. A narrower re-do should accept the heartbeat
when heartbeat.Ip resolves (DNS) to the peer address, so the spoof
hardening can return without breaking hostname-based clusters.
f51468cf73