diff --git a/notify/impl.go b/notify/impl.go
index f3a31f92..24666c63 100644
--- a/notify/impl.go
+++ b/notify/impl.go
@@ -1151,11 +1151,6 @@ type victorOpsMessage struct {
 	MonitoringTool    string `json:"monitoring_tool"`
 }
 
-type victorOpsErrorResponse struct {
-	Result  string `json:"result"`
-	Message string `json:"message"`
-}
-
 // Notify implements the Notifier interface.
 func (n *VictorOps) Notify(ctx context.Context, as ...*types.Alert) (bool, error) {
 	victorOpsAllowedEvents := map[string]bool{
diff --git a/notify/notify.go b/notify/notify.go
index 34dd6051..716afd86 100644
--- a/notify/notify.go
+++ b/notify/notify.go
@@ -340,8 +340,7 @@ func (n *GossipSettleStage) Exec(ctx context.Context, l log.Logger, alerts ...*t
 
 // InhibitStage filters alerts through an inhibition muter.
 type InhibitStage struct {
-	muter  types.Muter
-	marker types.Marker
+	muter types.Muter
 }
 
 // NewInhibitStage return a new InhibitStage.
diff --git a/notify/notify_test.go b/notify/notify_test.go
index 11171fd7..09b2f4ca 100644
--- a/notify/notify_test.go
+++ b/notify/notify_test.go
@@ -21,8 +21,6 @@ import (
 	"time"
 
 	"github.com/go-kit/kit/log"
-	"github.com/golang/protobuf/ptypes"
-	"github.com/golang/protobuf/ptypes/timestamp"
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/context"
@@ -75,14 +73,6 @@ func (l *testNflog) Snapshot(w io.Writer) (int, error) {
 	return 0, nil
 }
 
-func mustTimestampProto(ts time.Time) *timestamp.Timestamp {
-	tspb, err := ptypes.TimestampProto(ts)
-	if err != nil {
-		panic(err)
-	}
-	return tspb
-}
-
 func alertHashSet(hashes ...uint64) map[uint64]struct{} {
 	res := map[uint64]struct{}{}
 
diff --git a/provider/mem/mem_test.go b/provider/mem/mem_test.go
index 8a4634f1..c79ad770 100644
--- a/provider/mem/mem_test.go
+++ b/provider/mem/mem_test.go
@@ -285,15 +285,3 @@ func alertsEqual(a1, a2 *types.Alert) bool {
 	}
 	return a1.Timeout == a2.Timeout
 }
-
-func alertListEqual(a1, a2 []*types.Alert) bool {
-	if len(a1) != len(a2) {
-		return false
-	}
-	for i, a := range a1 {
-		if !alertsEqual(a, a2[i]) {
-			return false
-		}
-	}
-	return true
-}