Remove usages of QuicMakeUnique, Http2MakeUnique, SpdyMakeUnique.

This is made possible by all embedders finally supporting C++14's
std::make_unique, which is already used in more than 100 files in quic/.

gfe-relnote: n/a, no functional change.
PiperOrigin-RevId: 273935577
Change-Id: Icd6dd234422f286d897ea13ae609a67310f96380
diff --git a/quic/tools/quic_toy_server.cc b/quic/tools/quic_toy_server.cc
index c572c7a..0b0cd3d 100644
--- a/quic/tools/quic_toy_server.cc
+++ b/quic/tools/quic_toy_server.cc
@@ -4,12 +4,12 @@
 
 #include "net/third_party/quiche/src/quic/tools/quic_toy_server.h"
 
+#include <utility>
 #include <vector>
 
 #include "net/third_party/quiche/src/quic/core/quic_versions.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_default_proof_providers.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_socket_address.h"
 #include "net/third_party/quiche/src/quic/tools/quic_memory_cache_backend.h"