diff --git a/etcdserver/api/v3rpc/interceptor.go b/etcdserver/api/v3rpc/interceptor.go
index 7b693bf61..29aef2914 100644
--- a/etcdserver/api/v3rpc/interceptor.go
+++ b/etcdserver/api/v3rpc/interceptor.go
@@ -15,7 +15,6 @@
 package v3rpc
 
 import (
-	"strings"
 	"sync"
 	"time"
 
@@ -95,14 +94,6 @@ func newStreamInterceptor(s *etcdserver.EtcdServer) grpc.StreamServerInterceptor
 	}
 }
 
-func splitMethodName(fullMethodName string) (string, string) {
-	fullMethodName = strings.TrimPrefix(fullMethodName, "/") // remove leading slash
-	if i := strings.Index(fullMethodName, "/"); i >= 0 {
-		return fullMethodName[:i], fullMethodName[i+1:]
-	}
-	return "unknown", "unknown"
-}
-
 type serverStreamWithCtx struct {
 	grpc.ServerStream
 	ctx    context.Context