cmd/utils: don't enumerate USB unless --usb is set (#22130)

USB enumeration still occured. Make sure it will only occur if --usb is set.
This also deprecates the 'NoUSB' config file option in favor of a new option 'USB'.

p2p/simulations/adapters/inproc.go

@@ -100,7 +100,6 @@ func (s *SimAdapter) NewNode(config *NodeConfig) (Node, error) {
 			EnableMsgEvents: config.EnableMsgEvents,
 		},
 		ExternalSigner: config.ExternalSigner,
-		NoUSB:          true,
 		Logger:         log.New("node.id", id.String()),
 	})
 	if err != nil {