Dont pass objects to anchor reserves calculator by ref-ref

If we're already passing `AChannelManagerRef` and `ChainMonitorRef`
to `can_support_additional_anchor_channel` there's no need to take
them by reference.

Author: TheBlueMatt

lightning/src/util/anchor_channel_reserves.rs

@@ -290,8 +290,8 @@ pub fn can_support_additional_anchor_channel<
 		>,
 	>,
 >(
-	context: &AnchorChannelReserveContext, utxos: &[Utxo], a_channel_manager: &AChannelManagerRef,
-	chain_monitor: &ChainMonitorRef,
+	context: &AnchorChannelReserveContext, utxos: &[Utxo], a_channel_manager: AChannelManagerRef,
+	chain_monitor: ChainMonitorRef,
 ) -> bool
 where
 	AChannelManagerRef::Target: AChannelManager,