Revert original logic

Author: sieniven

crates/op-rbuilder/src/builders/flashblocks/payload_handler.rs

@@ -96,6 +96,9 @@ where
                     let _ = p2p_tx.send(payload.into()).await;
                 }
                 Some(payload) = built_payload_rx.recv() => {
+                    // ignore error here; if p2p was disabled, the channel will be closed.
+                    let _ = p2p_tx.send(payload.into()).await;
+
                     // Update engine tree state with locally built block payloads
                     if let Err(e) = payload_events_handle.send(Events::BuiltPayload(payload.clone())) {
                         warn!(e = ?e, "failed to send BuiltPayload event");