ln: remove unnecessary nonzero anchor channel check in build_htlc_output

LDK does not support a channel type that supports both zero fee and
nonzero fee anchors (as this is impossible), so we can drop the
unnecessary check in build_htlc_output.

Author: carlaKC

lightning/src/ln/chan_utils.rs

@@ -831,7 +831,7 @@ pub(crate) fn build_htlc_output(
 	} else {
 		htlc_success_tx_weight(channel_type_features)
 	};
-	let output_value = if channel_type_features.supports_anchors_zero_fee_htlc_tx() && !channel_type_features.supports_anchors_nonzero_fee_htlc_tx() {
+	let output_value = if channel_type_features.supports_anchors_zero_fee_htlc_tx() {
 		htlc.to_bitcoin_amount()
 	} else {
 		let total_fee = Amount::from_sat(feerate_per_kw as u64 * weight / 1000);