quic: remove unused binding variable in session.cc

Signed-off-by: James M Snell <jasnell@gmail.com>
PR-URL: #63177
Reviewed-By: Tim Perry <pimterry@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

Author: jasnell

src/quic/session.cc

@@ -1660,7 +1660,6 @@ Session::Session(Endpoint* endpoint,
 
   MakeWeak();
   Debug(this, "Session created.");
-  auto& binding = BindingData::Get(env());
 
   JS_DEFINE_READONLY_PROPERTY(
       env(), object, env()->stats_string(), impl_->stats_.GetArrayBuffer());