[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/array b/include/array
index 415ac16..4b91569 100644
--- a/include/array
+++ b/include/array
@@ -123,12 +123,6 @@
 #include <type_traits>
 #include <version>
 
-#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
-#  include <algorithm>
-#  include <iterator>
-#  include <utility>
-#endif
-
 // standard-mandated includes
 
 // [iterator.range]
@@ -535,4 +529,10 @@
 
 _LIBCPP_END_NAMESPACE_STD
 
+#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
+#  include <algorithm>
+#  include <iterator>
+#  include <utility>
+#endif
+
 #endif // _LIBCPP_ARRAY