Revert of Fix a bug where if a crypto packet is spuriously retransmitted

net/quic/quic_session.cc

Index: net/quic/quic_session.cc
diff --git a/net/quic/quic_session.cc b/net/quic/quic_session.cc
index 66f150bf9bd0b9daf59fdfa784a24d5f9e9e6c86..6d749ec1fbeec599205908ccde20d1aecfae7687 100644
--- a/net/quic/quic_session.cc
+++ b/net/quic/quic_session.cc
@@ -422,7 +422,7 @@ void QuicSession::OnCryptoHandshakeEvent(CryptoHandshakeEvent event) {
           << "Handshake confirmed without parameter negotiation.";
       // Discard originally encrypted packets, since they can't be decrypted by
       // the peer.
-      connection_->DiscardUnencryptedPackets();
+      connection_->NeuterUnencryptedPackets();
       connection_->SetOverallConnectionTimeout(QuicTime::Delta::Infinite());
       max_open_streams_ = config_.max_streams_per_connection();
       break;