Removed unused variable

I don't know how this got here, but it shouldn't be ;-)

PiperOrigin-RevId: 342145657
Change-Id: Ie1c449604e29471a4cef2bbd640ad75cadf999df
diff --git a/quic/masque/masque_epoll_server.cc b/quic/masque/masque_epoll_server.cc
index 60adeca..a670f56 100644
--- a/quic/masque/masque_epoll_server.cc
+++ b/quic/masque/masque_epoll_server.cc
@@ -18,7 +18,6 @@
       masque_server_backend_(masque_server_backend) {}
 
 QuicDispatcher* MasqueEpollServer::CreateQuicDispatcher() {
-  QuicEpollAlarmFactory alarm_factory(epoll_server());
   return new MasqueDispatcher(
       &config(), &crypto_config(), version_manager(),
       std::make_unique<QuicEpollConnectionHelper>(epoll_server(),