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/test_tools/fake_proof_source.cc b/quic/test_tools/fake_proof_source.cc
index c47208f..784ced4 100644
--- a/quic/test_tools/fake_proof_source.cc
+++ b/quic/test_tools/fake_proof_source.cc
@@ -4,8 +4,9 @@
 
 #include "net/third_party/quiche/src/quic/test_tools/fake_proof_source.h"
 
+#include <utility>
+
 #include "net/third_party/quiche/src/quic/platform/api/quic_logging.h"
-#include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h"
 #include "net/third_party/quiche/src/quic/test_tools/crypto_test_utils.h"
 
 namespace quic {