Remove unused one_rtt_keys_available_ from TlsServerHandshaker.

PiperOrigin-RevId: 340457564
Change-Id: I5317288771b35487a4ecd953f7d34b41f875a6fb

quic/core/tls_server_handshaker.h

diff --git a/quic/core/tls_server_handshaker.h b/quic/core/tls_server_handshaker.h
index fab4a87..41870f9 100644
--- a/quic/core/tls_server_handshaker.h
+++ b/quic/core/tls_server_handshaker.h
@@ -179,7 +179,6 @@
 
   HandshakeState state_ = HANDSHAKE_START;
   bool encryption_established_ = false;
-  bool one_rtt_keys_available_ = false;
   bool valid_alpn_received_ = false;
   QuicReferenceCountedPointer<QuicCryptoNegotiatedParameters>
       crypto_negotiated_params_;