fix(dot/node): Start websocket server only with --ws flag (#1671)

Author: EclesioMeloJunior

dot/node.go

@@ -308,7 +308,7 @@ func NewNode(cfg *Config, ks *keystore.GlobalKeystore, stopFunc func()) (*Node,
 	nodeSrvcs = append(nodeSrvcs, sysSrvc)
 
 	// check if rpc service is enabled
-	if enabled := cfg.RPC.Enabled; enabled {
+	if enabled := cfg.RPC.Enabled || cfg.RPC.WS; enabled {
 		rpcSrvc := createRPCService(cfg, stateSrvc, coreSrvc, networkSrvc, bp, rt, sysSrvc)
 		nodeSrvcs = append(nodeSrvcs, rpcSrvc)
 	} else {