Remove kqueue bug workaround since the issue is now fixed upstream

See https://github.com/netty/netty/pull/9149

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -404,18 +404,14 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
     }
 
     if (connectedServer == null) {
-      // The player isn't yet connected to a server. Note that we need to do this in a future run
-      // of the event loop due to an issue with the Netty kqueue transport.
-      minecraftConnection.eventLoop().execute(() -> {
-        Optional<RegisteredServer> nextServer = getNextServerToTry(rs);
-        if (nextServer.isPresent()) {
-          // There can't be any connection in flight now.
-          resetInFlightConnection();
-          createConnectionRequest(nextServer.get()).fireAndForget();
-        } else {
-          disconnect(friendlyReason);
-        }
-      });
+      Optional<RegisteredServer> nextServer = getNextServerToTry(rs);
+      if (nextServer.isPresent()) {
+        // There can't be any connection in flight now.
+        resetInFlightConnection();
+        createConnectionRequest(nextServer.get()).fireAndForget();
+      } else {
+        disconnect(friendlyReason);
+      }
     } else {
       boolean kickedFromCurrent = connectedServer.getServer().equals(rs);
       ServerKickResult result;