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/crypto/tls_server_connection.cc b/quic/core/crypto/tls_server_connection.cc
index a3a1815..927c75a 100644
--- a/quic/core/crypto/tls_server_connection.cc
+++ b/quic/core/crypto/tls_server_connection.cc
@@ -40,7 +40,7 @@
 // static
 int TlsServerConnection::SelectCertificateCallback(SSL* ssl,
                                                    int* out_alert,
-                                                   void* arg) {
+                                                   void* /*arg*/) {
   return ConnectionFromSsl(ssl)->delegate_->SelectCertificate(out_alert);
 }
 
@@ -50,7 +50,7 @@
                                             uint8_t* out_len,
                                             const uint8_t* in,
                                             unsigned in_len,
-                                            void* arg) {
+                                            void* /*arg*/) {
   return ConnectionFromSsl(ssl)->delegate_->SelectAlpn(out, out_len, in,
                                                        in_len);
 }