swarm: remove unused/dead code (#18351)

3 files changed, 3 insertions, 64 deletions

diff --git a/swarm/network/stream/intervals/store_test.go b/swarm/network/stream/intervals/store_test.go
index 0ab14c065..a36814b71 100644
--- a/swarm/network/stream/intervals/store_test.go
+++ b/swarm/network/stream/intervals/store_test.go
@@ -17,14 +17,11 @@
 package intervals
 
 import (
-	"errors"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/swarm/state"
 )
 
-var ErrNotFound = errors.New("not found")
-
 // TestInmemoryStore tests basic functionality of InmemoryStore.
 func TestInmemoryStore(t *testing.T) {
 	testStore(t, state.NewInmemoryStore())
diff --git a/swarm/network/stream/stream.go b/swarm/network/stream/stream.go
index 32e107823..090bef8d1 100644
--- a/swarm/network/stream/stream.go
+++ b/swarm/network/stream/stream.go
@@ -388,14 +388,6 @@ func (r *Registry) Quit(peerId enode.ID, s Stream) error {
 	return peer.Send(context.TODO(), msg)
 }
 
-func (r *Registry) NodeInfo() interface{} {
-	return nil
-}
-
-func (r *Registry) PeerInfo(id enode.ID) interface{} {
-	return nil
-}
-
 func (r *Registry) Close() error {
 	return r.intervalsStore.Close()
 }
diff --git a/swarm/network/stream/syncer.go b/swarm/network/stream/syncer.go
index 4bfbac8b0..4fb8b9342 100644
--- a/swarm/network/stream/syncer.go
+++ b/swarm/network/stream/syncer.go
@@ -127,19 +127,9 @@ func (s *SwarmSyncerServer) SetNextBatch(from, to uint64) ([]byte, uint64, uint6
 
 // SwarmSyncerClient
 type SwarmSyncerClient struct {
-	sessionAt     uint64
-	nextC         chan struct{}
-	sessionRoot   storage.Address
-	sessionReader storage.LazySectionReader
-	retrieveC     chan *storage.Chunk
-	storeC        chan *storage.Chunk
-	store         storage.SyncChunkStore
-	// chunker               storage.Chunker
-	currentRoot storage.Address
-	requestFunc func(chunk *storage.Chunk)
-	end, start  uint64
-	peer        *Peer
-	stream      Stream
+	store  storage.SyncChunkStore
+	peer   *Peer
+	stream Stream
 }
 
 // NewSwarmSyncerClient is a contructor for provable data exchange syncer
@@ -209,46 +199,6 @@ func (s *SwarmSyncerClient) BatchDone(stream Stream, from uint64, hashes []byte,
 	return nil
 }
 
-func (s *SwarmSyncerClient) TakeoverProof(stream Stream, from uint64, hashes []byte, root storage.Address) (*TakeoverProof, error) {
-	// for provable syncer currentRoot is non-zero length
-	// TODO: reenable this with putter/getter
-	// if s.chunker != nil {
-	// 	if from > s.sessionAt { // for live syncing currentRoot is always updated
-	// 		//expRoot, err := s.chunker.Append(s.currentRoot, bytes.NewReader(hashes), s.retrieveC, s.storeC)
-	// 		expRoot, _, err := s.chunker.Append(s.currentRoot, bytes.NewReader(hashes), s.retrieveC)
-	// 		if err != nil {
-	// 			return nil, err
-	// 		}
-	// 		if !bytes.Equal(root, expRoot) {
-	// 			return nil, fmt.Errorf("HandoverProof mismatch")
-	// 		}
-	// 		s.currentRoot = root
-	// 	} else {
-	// 		expHashes := make([]byte, len(hashes))
-	// 		_, err := s.sessionReader.ReadAt(expHashes, int64(s.end*HashSize))
-	// 		if err != nil && err != io.EOF {
-	// 			return nil, err
-	// 		}
-	// 		if !bytes.Equal(expHashes, hashes) {
-	// 			return nil, errors.New("invalid proof")
-	// 		}
-	// 	}
-	// 	return nil, nil
-	// }
-	s.end += uint64(len(hashes)) / HashSize
-	takeover := &Takeover{
-		Stream: stream,
-		Start:  s.start,
-		End:    s.end,
-		Root:   root,
-	}
-	// serialise and sign
-	return &TakeoverProof{
-		Takeover: takeover,
-		Sig:      nil,
-	}, nil
-}
-
 func (s *SwarmSyncerClient) Close() {}
 
 // base for parsing and formating sync bin key