Remove QuicFramer::encrypter, because it's a test-only method.

net/quic/quic_framer.cc

Index: net/quic/quic_framer.cc
diff --git a/net/quic/quic_framer.cc b/net/quic/quic_framer.cc
index 7d6ecc250acc13dd71ba1938efe29e4c5079988f..545bfa5a9c63bfb14ae90aeebe82285f58d75e65 100644
--- a/net/quic/quic_framer.cc
+++ b/net/quic/quic_framer.cc
@@ -1609,13 +1609,6 @@ void QuicFramer::SetEncrypter(EncryptionLevel level,
   encrypter_[level].reset(encrypter);
 }
 
-const QuicEncrypter* QuicFramer::encrypter(EncryptionLevel level) const {
-  DCHECK_GE(level, 0);
-  DCHECK_LT(level, NUM_ENCRYPTION_LEVELS);
-  DCHECK(encrypter_[level].get() != nullptr);
-  return encrypter_[level].get();
-}
-
 QuicEncryptedPacket* QuicFramer::EncryptPacket(
     EncryptionLevel level,
     QuicPacketSequenceNumber packet_sequence_number,