Switch QuicMakeUnique to std::make_unique, part 1: //third_party/quic

gfe-relnote: n/a (no functional change)
PiperOrigin-RevId: 267662077
Change-Id: Ic63023042eafb77aa80d88749845f841b3078c57

quic/core/quic_session.cc

diff --git a/quic/core/quic_session.cc b/quic/core/quic_session.cc
index b342e3d..619840b 100644
--- a/quic/core/quic_session.cc
+++ b/quic/core/quic_session.cc
@@ -1327,7 +1327,7 @@
     return nullptr;
   }
 
-  auto pending = QuicMakeUnique<PendingStream>(stream_id, this);
+  auto pending = std::make_unique<PendingStream>(stream_id, this);
   PendingStream* unowned_pending = pending.get();
   pending_stream_map_[stream_id] = std::move(pending);
   return unowned_pending;