[NFC][libc++] Moves transitive includes location.

As discussed in D132284 they will be moved to the end.

Reviewed By: #libc, Mordante

Differential Revision: https://reviews.llvm.org/D133212

NOKEYCHECK=True
GitOrigin-RevId: e31c2a1b1a643861f25ba0145cb4701c999fc6c2
diff --git a/include/string b/include/string
index 6010177..26e55ce 100644
--- a/include/string
+++ b/include/string
@@ -569,16 +569,6 @@
 #  include <cwchar>
 #endif
 
-#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
-#  include <algorithm>
-#  include <functional>
-#  include <iterator>
-#  include <new>
-#  include <typeinfo>
-#  include <utility>
-#  include <vector>
-#endif
-
 // standard-mandated includes
 
 // [iterator.range]
@@ -4765,4 +4755,14 @@
 
 _LIBCPP_POP_MACROS
 
+#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
+#  include <algorithm>
+#  include <functional>
+#  include <iterator>
+#  include <new>
+#  include <typeinfo>
+#  include <utility>
+#  include <vector>
+#endif
+
 #endif // _LIBCPP_STRING