chore: Subscribe to mainnet quotes

testnet quotes look odd, especially as we are using the mainnet prices for the candlestick charts.

I don't see a reason why we should not use the mainnet quotes also for testing.

maker/src/trading/mod.rs

@@ -20,14 +20,10 @@ mod orderbook_client;
 pub async fn run(
     orderbook_url: &Url,
     maker_id: PublicKey,
-    network: Network,
+    _network: Network,
     concurrent_orders: usize,
 ) -> Result<()> {
-    let network = match network {
-        Network::Bitcoin => bitmex_stream::Network::Mainnet,
-        _ => bitmex_stream::Network::Testnet,
-    };
-    let mut price_stream = bitmex_client::bitmex(network).await;
+    let mut price_stream = bitmex_client::bitmex(bitmex_stream::Network::Mainnet).await;
 
     let orderbook_client = OrderbookClient::new();