TUN-7004: Dont show local config dirs for remotely configured tuns

cloudflared shows possible directories for config files to be present if
it doesn't see one when starting up. For remotely configured files, it
may not be necessary to have a config file present. This PR looks to see
if a token flag was provided, and if yes, does not log this message.

cmd/cloudflared/tunnel/cmd.go

@@ -241,7 +241,8 @@ func StartServer(
 	listeners := gracenet.Net{}
 	errC := make(chan error)
 
-	if config.GetConfiguration().Source() == "" {
+	// Only log for locally configured tunnels (Token is blank).
+	if config.GetConfiguration().Source() == "" && c.String(TunnelTokenFlag) == "" {
 		log.Info().Msg(config.ErrNoConfigFile.Error())
 	}