Remove unused include and type alias

e4f1f262610072e05f42e372851b8d192a060351

util/generic/function.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include "typetraits.h"
 #include "typelist.h"
 
 #include <functional>
@@ -64,7 +63,6 @@ namespace NPrivate {
 
     template <class R, typename... Args>
     struct TFuncInfo<R(Args...)> {
-        using TResult = R;
         typedef R TSignature(Args...);
     };
 }