refactor: unused parameter should be replaced by underscore

Unused parameters in functions or methods should be replaced with `_`
(underscore) or removed.

Author: deepsource-autofix[bot]

admin/ops.go

@@ -130,7 +130,7 @@ func (o *OpsServer) AdminData() http.Handler {
 }
 
 func (*OpsServer) AdminUI() http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	return http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		err := TMPL.Execute(w, nil)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)

clustering/broadcast-delegate.go

@@ -53,7 +53,7 @@ func newBroadcastDelegate(engine *query.Engine, broadcasts *memberlist.TransmitL
 	}
 }
 
-func (*BroadcastDelegate) NodeMeta(limit int) []byte {
+func (*BroadcastDelegate) NodeMeta(_ int) []byte {
 	return []byte{}
 }