[drape] small pointers improvement

1 files changed, 2 insertions, 6 deletions

diff --git a/std/type_traits.hpp b/std/type_traits.hpp
index 1a56c51628..00baf5531f 100644
--- a/std/type_traits.hpp
+++ b/std/type_traits.hpp
@@ -10,21 +10,17 @@
 using std::conditional;
 using std::enable_if;
 using std::is_arithmetic;
+using std::is_base_of;
 using std::is_floating_point;
 using std::is_integral;
 using std::is_pod;
 using std::is_same;
 using std::is_signed;
-using std::is_unsigned;
-using std::make_signed;
-using std::make_unsigned;
-using std::underlying_type;
-using std::is_same;
-using std::is_signed;
 using std::is_standard_layout;
 using std::is_unsigned;
 using std::make_signed;
 using std::make_unsigned;
+using std::underlying_type;
 using std::is_void;
 
 /// @todo clang on linux doesn't have is_trivially_copyable.