dont sleep at start

that was a gross fix anyways

web3_proxy/src/app/mod.rs

@@ -585,6 +585,7 @@ impl App {
                         }
                     }
 
+                    // TODO: add a min time between config changes
                     yield_now().await;
                 }
 

web3_proxy_cli/src/sub_commands/proxyd.rs

@@ -161,10 +161,7 @@ impl ProxydSubCommand {
             // give 30 seconds for the db to connect. if it does not connect, it will keep retrying
         }
 
-        info!("waiting 30 seconds for warm up");
+        info!("waiting up to 30 seconds for a head block");
-        sleep(Duration::from_secs(30)).await;
-
-        info!("waiting up to 30 more seconds for a head block");
         let max_wait_until = Instant::now() + Duration::from_secs(30);
         loop {
             select! {