Fix QUIC warnings in preparation for enabling them

gfe-relnote: n/a, compilation-only change
PiperOrigin-RevId: 253893322
Change-Id: I15917a1c5b325922850086277cfad5e3b4da20a4
diff --git a/quic/core/quic_config.cc b/quic/core/quic_config.cc
index 2423023..e24e84b 100644
--- a/quic/core/quic_config.cc
+++ b/quic/core/quic_config.cc
@@ -170,7 +170,7 @@
 
 QuicErrorCode QuicFixedUint32::ProcessPeerHello(
     const CryptoHandshakeMessage& peer_hello,
-    HelloType hello_type,
+    HelloType /*hello_type*/,
     std::string* error_details) {
   DCHECK(error_details != nullptr);
   QuicErrorCode error = peer_hello.GetUint32(tag_, &receive_value_);
@@ -235,7 +235,7 @@
 
 QuicErrorCode QuicFixedUint128::ProcessPeerHello(
     const CryptoHandshakeMessage& peer_hello,
-    HelloType hello_type,
+    HelloType /*hello_type*/,
     std::string* error_details) {
   DCHECK(error_details != nullptr);
   QuicErrorCode error = peer_hello.GetUint128(tag_, &receive_value_);
@@ -305,7 +305,7 @@
 
 QuicErrorCode QuicFixedTagVector::ProcessPeerHello(
     const CryptoHandshakeMessage& peer_hello,
-    HelloType hello_type,
+    HelloType /*hello_type*/,
     std::string* error_details) {
   DCHECK(error_details != nullptr);
   QuicTagVector values;
@@ -378,7 +378,7 @@
 
 QuicErrorCode QuicFixedSocketAddress::ProcessPeerHello(
     const CryptoHandshakeMessage& peer_hello,
-    HelloType hello_type,
+    HelloType /*hello_type*/,
     std::string* error_details) {
   QuicStringPiece address;
   if (!peer_hello.GetStringPiece(tag_, &address)) {