test: cleanup

test/include/entt/ext/stl/ios.hpp

@@ -1,13 +0,0 @@
-#ifndef ENTT_EXT_STL_IOS_HPP
-#define ENTT_EXT_STL_IOS_HPP
-
-/*! @cond ENTT_INTERNAL */
-#include <ios>
-
-namespace entt::stl {
-using namespace std;
-static constexpr auto entt_ext_ios = true;
-} // namespace entt::stl
-/*! @endcond */
-
-#endif

test/include/entt/ext/stl/sstream.hpp

@@ -1,13 +0,0 @@
-#ifndef ENTT_EXT_STL_SSTREAM_HPP
-#define ENTT_EXT_STL_SSTREAM_HPP
-
-/*! @cond ENTT_INTERNAL */
-#include <sstream>
-
-namespace entt::stl {
-using namespace std;
-static constexpr auto entt_ext_sstream = true;
-} // namespace entt::stl
-/*! @endcond */
-
-#endif