diff --git a/node/node_test.go b/node/node_test.go
index f60533540bd..7f1e0fa0cb6 100644
--- a/node/node_test.go
+++ b/node/node_test.go
@@ -401,12 +401,3 @@ func TestLifecycleTerminationGuarantee(t *testing.T) {
 		delete(stopped, id)
 	}
 }
-
-func containsProtocol(stackProtocols []p2p.Protocol, protocol p2p.Protocol) bool {
-	for _, a := range stackProtocols {
-		if reflect.DeepEqual(a, protocol) {
-			return true
-		}
-	}
-	return false
-}
diff --git a/node/privateapi/mining.go b/node/privateapi/mining.go
index 20e9ad4ac3a..48129a60bcd 100644
--- a/node/privateapi/mining.go
+++ b/node/privateapi/mining.go
@@ -162,10 +162,9 @@ func (s *MiningServer) BroadcastMinedBlock(block *types.Block) error {
 
 // MinedBlockStreams - it's safe to use this class as non-pointer
 type MinedBlockStreams struct {
-	chans  map[uint]txpoolproto.Mining_OnMinedBlockServer
-	id     uint
-	mu     sync.Mutex
-	logger log.Logger
+	chans map[uint]txpoolproto.Mining_OnMinedBlockServer
+	id    uint
+	mu    sync.Mutex
 }
 
 func (s *MinedBlockStreams) Add(stream txpoolproto.Mining_OnMinedBlockServer) (remove func()) {