Revert "Compile quic_server on MacOS"

net/tools/quic/quic_client.cc

Index: net/tools/quic/quic_client.cc
diff --git a/net/tools/quic/quic_client.cc b/net/tools/quic/quic_client.cc
index e99c62d075f25e5b30e22024c0d55f02d77f63fc..88920fd73fc21cf32cb46cac206973d669b2af4d 100644
--- a/net/tools/quic/quic_client.cc
+++ b/net/tools/quic/quic_client.cc
@@ -122,10 +122,10 @@ QuicPacketWriter* QuicClient::DummyPacketWriterFactory::Create(
 
 bool QuicClient::CreateUDPSocket() {
   int address_family = server_address_.GetSockAddrFamily();
-  fd_ = QuicSocketUtils::CreateNonBlockingSocket(address_family, SOCK_DGRAM,
-                                                 IPPROTO_UDP);
+  fd_ = socket(address_family, SOCK_DGRAM | SOCK_NONBLOCK, IPPROTO_UDP);
   if (fd_ < 0) {
-    return false;  // failure already logged
+    LOG(ERROR) << "CreateSocket() failed: " << strerror(errno);
+    return false;
   }
 
   int get_overflow = 1;