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

net/quic/crypto/quic_decrypter.cc

Index: net/quic/crypto/quic_decrypter.cc
diff --git a/net/quic/crypto/quic_decrypter.cc b/net/quic/crypto/quic_decrypter.cc
index 1253b872b38ee171f11ca8a81357682a2a24484f..eae1f8fcf6d6f3fcaa5776da6cc01cb19ca869f7 100644
--- a/net/quic/crypto/quic_decrypter.cc
+++ b/net/quic/crypto/quic_decrypter.cc
@@ -5,7 +5,6 @@
 #include "net/quic/crypto/quic_decrypter.h"
 
 #include "net/quic/crypto/aes_128_gcm_12_decrypter.h"
-#include "net/quic/crypto/chacha20_poly1305_decrypter.h"
 #include "net/quic/crypto/chacha20_poly1305_rfc7539_decrypter.h"
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_decrypter.h"
@@ -17,8 +16,6 @@ QuicDecrypter* QuicDecrypter::Create(QuicTag algorithm) {
   switch (algorithm) {
     case kAESG:
       return new Aes128Gcm12Decrypter();
-    case kCC12:
-      return new ChaCha20Poly1305Decrypter();
     case kCC20:
       return new ChaCha20Poly1305Rfc7539Decrypter();
     case kNULL: