Replace QUIC_VERSION_99 with QUIC_VERSION_IETF_DRAFT_27

Now that IETF drafts do not change as quickly, we no longer need a dumping ground for changes, so we're retiring QUIC_VERSION_99. The same functionality is now taken over by QUIC_VERSION_IETF_DRAFT_27.

gfe-relnote: no behavior change, protected by quic_enable_version_draft_27
PiperOrigin-RevId: 299195934
Change-Id: Ic5c7769574c1569edca3c31f1e05d867f7a5c29a
diff --git a/quic/core/quic_dispatcher_test.cc b/quic/core/quic_dispatcher_test.cc
index 362ff81..7e2b470 100644
--- a/quic/core/quic_dispatcher_test.cc
+++ b/quic/core/quic_dispatcher_test.cc
@@ -1277,7 +1277,6 @@
 }
 
 TEST_P(QuicDispatcherTestAllVersions, ProcessSmallCoalescedPacket) {
-  SetQuicReloadableFlag(quic_enable_version_t099, true);
   CreateTimeWaitListManager();
   QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
 
@@ -2109,9 +2108,8 @@
 
 // Regression test for b/117874922.
 TEST_P(BufferedPacketStoreTest, ProcessBufferedChloWithDifferentVersion) {
-  // Turn off version T099, so the preferred version is not supported by the
-  // server.
-  SetQuicReloadableFlag(quic_enable_version_t099, false);
+  // Ensure the preferred version is not supported by the server.
+  SetQuicReloadableFlag(quic_enable_version_draft_27, false);
   uint64_t last_connection_id = kMaxNumSessionsToCreate + 5;
   ParsedQuicVersionVector supported_versions = CurrentSupportedVersions();
   for (uint64_t conn_id = 1; conn_id <= last_connection_id; ++conn_id) {