Wrap EXPECT_DEBUG_DEATH in quic_crypto_client_config_test.cc

This macro is causing a compilation failure for chromium on iOS.

gfe-relnote: n/a (test-only change)
PiperOrigin-RevId: 268937381
Change-Id: I8b198832b51b0ac25cc91d69334d86d5c3f496f9

quic/core/quic_session_test.cc

diff --git a/quic/core/quic_session_test.cc b/quic/core/quic_session_test.cc
index 439dc3b..f7ab416 100644
--- a/quic/core/quic_session_test.cc
+++ b/quic/core/quic_session_test.cc
@@ -2679,7 +2679,9 @@
     session_.OnStreamFrame(frame1);
     EXPECT_TRUE(connection_->connected());
   } else {
+#if GTEST_HAS_DEATH_TEST && !defined(NDEBUG)
     EXPECT_DEBUG_DEATH(session_.OnStreamFrame(frame1), "Check failed");
+#endif  // GTEST_HAS_DEATH_TEST && !defined(NDEBUG)
   }
 }