Remove unreachable return in quic_spdy_session_test.cc

PiperOrigin-RevId: 852599872

quiche/quic/core/http/quic_spdy_session_test.cc

diff --git a/quiche/quic/core/http/quic_spdy_session_test.cc b/quiche/quic/core/http/quic_spdy_session_test.cc
index e6bef69..e99c3df 100644
--- a/quiche/quic/core/http/quic_spdy_session_test.cc
+++ b/quiche/quic/core/http/quic_spdy_session_test.cc
@@ -1183,7 +1183,6 @@
   CompleteHandshake();
   if (!session_.has_value()) {
     FAIL();
-    return;
   }
   TestSession& session = *session_;
   StrictMock<MockHttp3DebugVisitor> debug_visitor;