Remove the non-RFC 7539 variants of ChaCha20Poly1305 crypters in QUIC

net/quic/crypto/quic_encrypter.cc

Index: net/quic/crypto/quic_encrypter.cc
diff --git a/net/quic/crypto/quic_encrypter.cc b/net/quic/crypto/quic_encrypter.cc
index 0cd727b09403e27da3398202b43f6cb286d7f8a2..e483b6f48c7ebe3bbaaf18a7bb8aa0b9cbb6d20a 100644
--- a/net/quic/crypto/quic_encrypter.cc
+++ b/net/quic/crypto/quic_encrypter.cc
@@ -5,7 +5,6 @@
 #include "net/quic/crypto/quic_encrypter.h"
 
 #include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
-#include "net/quic/crypto/chacha20_poly1305_encrypter.h"
 #include "net/quic/crypto/chacha20_poly1305_rfc7539_encrypter.h"
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_encrypter.h"
@@ -17,8 +16,6 @@ QuicEncrypter* QuicEncrypter::Create(QuicTag algorithm) {
   switch (algorithm) {
     case kAESG:
       return new Aes128Gcm12Encrypter();
-    case kCC12:
-      return new ChaCha20Poly1305Encrypter();
     case kCC20:
       return new ChaCha20Poly1305Rfc7539Encrypter();
     case kNULL: