features: define temporary AMP feature bits 30/31

feature/manager.go

@@ -77,6 +77,8 @@ func newManager(cfg Config, desc setDesc) (*Manager, error) {
 			raw.Unset(lnwire.PaymentAddrRequired)
 			raw.Unset(lnwire.MPPOptional)
 			raw.Unset(lnwire.MPPRequired)
+			raw.Unset(lnwire.AMPOptional)
+			raw.Unset(lnwire.AMPRequired)
 		}
 		if cfg.NoStaticRemoteKey {
 			raw.Unset(lnwire.StaticRemoteKeyOptional)