[FAB-3706] Delete unused vars, etc in gossip dir

This patchset deletes unused vars etc in gossip directory.

Change-Id: I059e4efb7b704b5763b925749b186f2ddf799f69
Signed-off-by: Nao Nishijima <[email protected]>

Author: Nao Nishijima

gossip/discovery/discovery_impl.go

@@ -82,8 +82,6 @@ type gossipDiscoveryImpl struct {
 
 	msgStore *aliveMsgStore
 
-	bootstrapPeers []string
-
 	comm  CommService
 	crypt CryptoService
 	lock  *sync.RWMutex

gossip/discovery/discovery_test.go

@@ -66,14 +66,6 @@ type dummyCommModule struct {
 	mock         *mock.Mock
 }
 
-type gossipMsg struct {
-	*proto.GossipMessage
-}
-
-func (m *gossipMsg) GetGossipMessage() *proto.GossipMessage {
-	return m.GossipMessage
-}
-
 type gossipInstance struct {
 	comm *dummyCommModule
 	Discovery

gossip/election/adapter_test.go

@@ -24,7 +24,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/hyperledger/fabric/gossip/api"
 	"github.com/hyperledger/fabric/gossip/common"
 	"github.com/hyperledger/fabric/gossip/discovery"
 	"github.com/hyperledger/fabric/gossip/util"
@@ -165,26 +164,6 @@ func TestAdapterImpl_Gossip(t *testing.T) {
 
 }
 
-type mockMsgCrypto struct {
-}
-
-// Sign signs a message, returns a signed message on success
-// or an error on failure
-func (is *mockMsgCrypto) Sign(msg []byte) ([]byte, error) {
-	return msg, nil
-}
-
-// Verify verifies a signed message
-func (is *mockMsgCrypto) Verify(vkID, signature, message []byte) error {
-	return nil
-}
-
-// Get returns the identity of a given pkiID, or error if such an identity
-// isn't found
-func (is *mockMsgCrypto) Get(pkiID common.PKIidType) (api.PeerIdentityType, error) {
-	return nil, nil
-}
-
 type mockAcceptor struct {
 	ch       chan *proto.GossipMessage
 	acceptor common.MessageAcceptor

gossip/state/state.go

@@ -95,8 +95,6 @@ type GossipStateProviderImpl struct {
 
 	commChan <-chan proto.ReceivedMessage
 
-	mutex sync.RWMutex
-
 	// Queue of payloads which wasn't acquired yet
 	payloads PayloadsBuffer
 

gossip/util/misc.go

@@ -128,11 +128,6 @@ func (s *Set) Remove(item interface{}) {
 	delete(s.items, item)
 }
 
-type goroutine struct {
-	id    int64
-	Stack []string
-}
-
 // PrintStackTrace prints to stdout
 // all goroutines
 func PrintStackTrace() {