don't request data from relayers + create gwyneth relayer

crates/rbuilder/src/live_builder/config.rs

@@ -290,6 +290,14 @@ impl LiveBuilderConfig for Config {
             self.base_config.chain_spec()?,
             Box::new(DummyBiddingService {}),
         )?;
+
+        let gwyneth_relay_config = RelayConfig::default().
+            with_url("https://0xac6e77dfe25ecd6110b8e780608cce0dab71fdd5ebea22a16c0205200f2f8e2e3ad3b71d3499c54ad14d6c21b41a37ae@boost-relay.flashbots.net").
+            with_name("gwyneth");
+        let gwyneth_relay = MevBoostRelay::from_config(&gwyneth_relay_config)?;
+
+        relays.clone().push(gwyneth_relay);
+
         let payload_event = MevBoostSlotDataGenerator::new(
             self.l1_config.beacon_clients()?,
             relays,

crates/rbuilder/src/live_builder/payload_events/mod.rs

@@ -18,6 +18,7 @@ use crate::{
 };
 use ahash::HashSet;
 use alloy_primitives::{utils::format_ether, Address, B256, U256};
+use primitive_types::H384;
 use reth::{
     primitives::constants::SLOT_DURATION, rpc::types::beacon::events::PayloadAttributesEvent,
 };
@@ -111,7 +112,7 @@ impl MevBoostSlotDataGenerator {
     ///     it, but even with the event being created for every slot, the fee_recipient we get from MEV-Boost might be different so we should always replace it.
     ///     Note that with MEV-boost the validator may change the fee_recipient when registering to the Relays.
     pub fn spawn(self) -> (JoinHandle<()>, mpsc::UnboundedReceiver<MevBoostSlotData>) {
-        let relays = RelaysForSlotData::new(&self.relays);
+        //let relays = RelaysForSlotData::new(&self.relays);
 
         let (send, receive) = mpsc::unbounded_channel();
         let handle = tokio::spawn(async move {
@@ -123,20 +124,27 @@ impl MevBoostSlotDataGenerator {
             );
 
             info!("MevBoostSlotDataGenerator: started");
-            let mut relays = relays;
+            //let mut relays = relays;
             let mut recently_sent_data = VecDeque::with_capacity(RECENTLY_SENT_EVENTS_BUFF);
 
             while let Some(event) = source.recv().await {
                 if self.global_cancellation.is_cancelled() {
                     return;
                 }
 
-                let (slot_data, relays) =
+                /*let (slot_data, relays) =
                     if let Some(res) = relays.slot_data(event.data.proposal_slot).await {
                         res
                     } else {
                         continue;
-                    };
+                    };*/
+
+                let slot_data = SlotData {
+                    fee_recipient: Address::default(),
+                    gas_limit: 15_000_000,
+                    pubkey: H384::default(),
+                };
+                let relays = vec!["gwyneth".to_owned()];
 
                 let mut correct_event = event;
                 correct_event